How to Cite Sources in Your Research Paper: APA/MLA

  • Introduction
  • Choosing A Style (Quick View)
  • CSE/Chicago & Turabian
  • National Library of Medicine (NLM)
  • Free Citation Tools
  • Citing Electronic Resources/Legal & Government Citations
  • Annotated Bibliography
  • Avoiding Plagiarism/NSU Academic Policy
  • Writing the Paper
  • Chat with Us!

How to Cite Using APA Style

What is it? Developed by the American Psychological Association, APA style is widely used, not only in the social science and management but also in the humanities and natural sciences.

How do I do it? There are two parts to APA citation: in-text reference and the list of references at the end. See The Purdue Online Writing Lab for detailed guidelines.

Don't forget - you must cite your source both 1. In-Text and in a 2. Reference List

1. In-text Citation

The in-text component of APA citation includes two main elements: the author's last name and the year of the publication (e.g., Ross, 1997), and a third: the page number, whenever quoting directly or paraphrasing a specific section of the text (e.g., Ross, 1997, p. 2). For more than one author, list the names in the order they appear in the source. 

2. Reference List  

The list of references on your paper's last page is titled "References" and should be arranged in alphabetical order by first authors' last names. 

Useful APA Links

How to Cite Using MLA Style

Don't forget that you must cite your sources both in-text and at the end of your paper in a Works Cited/Reference Page/Bibliography.

  1. Citations within Your Paper

 MLA Style uses brief citations within the text of a paper immediately after a quote, a reference to a source, or a paraphrase. The brief citation gives the author and page number of the source you are referring to, allowing readers to locate the full citation in your Works Cited list.

In both examples, the complete information about the work by Smith would appear in the Works Cited list after Smith's name. If you cite more than one work published by Smith, you would distinguish the works by including a shortened version of the title: e.g. (Smith, Survey 182).

2. Works Cited List/Bibliography

The alphabetical list of works cited that appears at the end of your paper contains more information about all of the sources you've cited allowing readers to refer to them, as needed. The main characteristics are:

Useful MLA Links

Home / Guides / Citation Guides / How to Cite Sources

How to Cite Sources

Here is a complete list for how to cite sources. Most of these guides present citation guidance and examples in MLA, APA, and Chicago.

If you’re looking for general information on MLA or APA citations , the EasyBib Writing Center was designed for you! It has articles on what’s needed in an MLA in-text citation , how to format an APA paper, what an MLA annotated bibliography is, making an MLA works cited page, and much more!

MLA Format Citation Examples

The Modern Language Association created the MLA Style, currently in its 9th edition, to provide researchers with guidelines for writing and documenting scholarly borrowings.  Most often used in the humanities, MLA style (or MLA format ) has been adopted and used by numerous other disciplines, in multiple parts of the world.

MLA provides standard rules to follow so that most research papers are formatted in a similar manner. This makes it easier for readers to comprehend the information. The MLA in-text citation guidelines, MLA works cited standards, and MLA annotated bibliography instructions provide scholars with the information they need to properly cite sources in their research papers, articles, and assignments.

APA Format Citation Examples

The American Psychological Association created the APA citation style in 1929 as a way to help psychologists, anthropologists, and even business managers establish one common way to cite sources and present content.

APA is used when citing sources for academic articles such as journals, and is intended to help readers better comprehend content, and to avoid language bias wherever possible. The APA style (or APA format ) is now in its 7th edition, and provides citation style guides for virtually any type of resource.

Chicago Style Citation Examples

The Chicago/Turabian style of citing sources is generally used when citing sources for humanities papers, and is best known for its requirement that writers place bibliographic citations at the bottom of a page (in Chicago-format footnotes ) or at the end of a paper (endnotes).

The Turabian and Chicago citation styles are almost identical, but the Turabian style is geared towards student published papers such as theses and dissertations, while the Chicago style provides guidelines for all types of publications. This is why you’ll commonly see Chicago style and Turabian style presented together. The Chicago Manual of Style is currently in its 17th edition, and Turabian’s A Manual for Writers of Research Papers, Theses, and Dissertations is in its 8th edition.

Citing Specific Sources or Events

Additional FAQs

6 Interesting Citation Facts

The world of citations may seem cut and dry, but there’s more to them than just specific capitalization rules, MLA in-text citations , and other formatting specifications. Citations have been helping researches document their sources for hundreds of years, and are a great way to learn more about a particular subject area.

Ever wonder what sets all the different styles apart, or how they came to be in the first place? Read on for some interesting facts about citations!

1. There are Over 7,000 Different Citation Styles

You may be familiar with MLA and APA citation styles, but there are actually thousands of citation styles used for all different academic disciplines all across the world. Deciding which one to use can be difficult, so be sure to ask you instructor which one you should be using for your next paper.

2. Some Citation Styles are Named After People

While a majority of citation styles are named for the specific organizations that publish them (i.e. APA is published by the American Psychological Association, and MLA format is named for the Modern Language Association), some are actually named after individuals. The most well-known example of this is perhaps Turabian style, named for Kate L. Turabian, an American educator and writer. She developed this style as a condensed version of the Chicago Manual of Style in order to present a more concise set of rules to students.

3. There are Some Really Specific and Uniquely Named Citation Styles

How specific can citation styles get? The answer is very. For example, the “Flavour and Fragrance Journal” style is based on a bimonthly, peer-reviewed scientific journal published since 1985 by John Wiley & Sons. It publishes original research articles, reviews and special reports on all aspects of flavor and fragrance. Another example is “Nordic Pulp and Paper Research,” a style used by an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents.

4. More citations were created on  EasyBib.com  in the first quarter of 2018 than there are people in California.

The US Census Bureau estimates that approximately 39.5 million people live in the state of California. Meanwhile, about 43 million citations were made on EasyBib from January to March of 2018. That’s a lot of citations.

5. “Citations” is a Word With a Long History

The word “citations” can be traced back literally thousands of years to the Latin word “citare” meaning “to summon, urge, call; put in sudden motion, call forward; rouse, excite.” The word then took on its more modern meaning and relevance to writing papers in the 1600s, where it became known as the “act of citing or quoting a passage from a book, etc.”

6. Citation Styles are Always Changing

The concept of citations always stays the same. It is a means of preventing plagiarism and demonstrating where you relied on outside sources. The specific style rules, however, can and do change regularly. For example, in 2018 alone, 46 new citation styles were introduced , and 106 updates were made to exiting styles. At EasyBib, we are always on the lookout for ways to improve our styles and opportunities to add new ones to our list.

Why Citations Matter

Here are the ways accurate citations can help your students achieve academic success, and how you can answer the dreaded question, “why should I cite my sources?”

They Give Credit to the Right People

Citing their sources makes sure that the reader can differentiate the student’s original thoughts from those of other researchers. Not only does this make sure that the sources they use receive proper credit for their work, it ensures that the student receives deserved recognition for their unique contributions to the topic. Whether the student is citing in MLA format , APA format , or any other style, citations serve as a natural way to place a student’s work in the broader context of the subject area, and serve as an easy way to gauge their commitment to the project.

They Provide Hard Evidence of Ideas

Having many citations from a wide variety of sources related to their idea means that the student is working on a well-researched and respected subject. Citing sources that back up their claim creates room for fact-checking and further research . And, if they can cite a few sources that have the converse opinion or idea, and then demonstrate to the reader why they believe that that viewpoint is wrong by again citing credible sources, the student is well on their way to winning over the reader and cementing their point of view.

They Promote Originality and Prevent Plagiarism

The point of research projects is not to regurgitate information that can already be found elsewhere. We have Google for that! What the student’s project should aim to do is promote an original idea or a spin on an existing idea, and use reliable sources to promote that idea. Copying or directly referencing a source without proper citation can lead to not only a poor grade, but accusations of academic dishonesty. By citing their sources regularly and accurately, students can easily avoid the trap of plagiarism , and promote further research on their topic.

They Create Better Researchers

By researching sources to back up and promote their ideas, students are becoming better researchers without even knowing it! Each time a new source is read or researched, the student is becoming more engaged with the project and is developing a deeper understanding of the subject area. Proper citations demonstrate a breadth of the student’s reading and dedication to the project itself. By creating citations, students are compelled to make connections between their sources and discern research patterns. Each time they complete this process, they are helping themselves become better researchers and writers overall.

When is the Right Time to Start Making Citations?

Make in-text/parenthetical citations as you need them.

As you are writing your paper, be sure to include references within the text that correspond with references in a works cited or bibliography. These are usually called in-text citations or parenthetical citations in MLA and APA formats. The most effective time to complete these is directly after you have made your reference to another source. For instance, after writing the line from Charles Dickens’ A Tale of Two Cities : “It was the best of times, it was the worst of times…,” you would include a citation like this (depending on your chosen citation style):

(Dickens 11).

This signals to the reader that you have referenced an outside source. What’s great about this system is that the in-text citations serve as a natural list for all of the citations you have made in your paper, which will make completing the works cited page a whole lot easier. After you are done writing, all that will be left for you to do is scan your paper for these references, and then build a works cited page that includes a citation for each one.

Need help creating an MLA works cited page ? Try the MLA format generator on EasyBib.com! We also have a guide on how to format an APA reference page .

2. Understand the General Formatting Rules of Your Citation Style Before You Start Writing

While reading up on paper formatting may not sound exciting, being aware of how your paper should look early on in the paper writing process is super important. Citation styles can dictate more than just the appearance of the citations themselves, but rather can impact the layout of your paper as a whole, with specific guidelines concerning margin width, title treatment, and even font size and spacing. Knowing how to organize your paper before you start writing will ensure that you do not receive a low grade for something as trivial as forgetting a hanging indent.

Don’t know where to start? Here’s a formatting guide on APA format .

3. Double-check All of Your Outside Sources for Relevance and Trustworthiness First

Collecting outside sources that support your research and specific topic is a critical step in writing an effective paper. But before you run to the library and grab the first 20 books you can lay your hands on, keep in mind that selecting a source to include in your paper should not be taken lightly. Before you proceed with using it to backup your ideas, run a quick Internet search for it and see if other scholars in your field have written about it as well. Check to see if there are book reviews about it or peer accolades. If you spot something that seems off to you, you may want to consider leaving it out of your work. Doing this before your start making citations can save you a ton of time in the long run.

Finished with your paper? It may be time to run it through a grammar and plagiarism checker , like the one offered by EasyBib Plus. If you’re just looking to brush up on the basics, our grammar guides  are ready anytime you are.

How useful was this post?

Click on a star to rate it!

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?

Citation Basics

Harvard Referencing

Plagiarism Basics

Plagiarism Checker

Upload a paper to check for plagiarism against billions of sources and get advanced writing suggestions for clarity and style.

Get Started

Purdue Online Writing Lab College of Liberal Arts

cited sources in a research paper

MLA Works Cited: Electronic Sources (Web Publications)

OWL logo

Welcome to the Purdue OWL

This page is brought to you by the OWL at Purdue University. When printing this page, you must include the entire legal notice.

Copyright ©1995-2018 by The Writing Lab & The OWL at Purdue and Purdue University. All rights reserved. This material may not be published, reproduced, broadcast, rewritten, or redistributed without permission. Use of this site constitutes acceptance of our terms and conditions of fair use.

MLA (Modern Language Association) style is most commonly used to write papers and cite sources within the liberal arts and humanities. This resource, updated to reflect the MLA Handbook (9 th ed.), offers examples for the general format of MLA research papers, in-text citations, endnotes/footnotes, and the Works Cited page.

The MLA Handbook highlights principles over prescriptive practices. Essentially, a writer will need to take note of primary elements in every source, such as author, title, etc. and then assort them in a general format. Thus, by using this methodology, a writer will be able to cite any source regardless of whether it’s included in this list.

However, this guide will highlight a few concerns when citing digital sources in MLA style.

Best Practices for Managing Online Sources

Because online information can change or disappear, it is always a good idea to keep personal copies of important electronic information whenever possible. Downloading or even printing key documents ensures you have a stable backup. You can also use the Bookmark function in your web browser in order to build an easy-to-access reference for all of your project's sources (though this will not help you if the information is changed or deleted).

It is also wise to keep a record of when you first consult with each online source. MLA uses the phrase, “Accessed” to denote which date you accessed the web page when available or necessary. It is not required to do so, but it is encouraged (especially when there is no copyright date listed on a website).

Important Note on the Use of URLs in MLA

Include a URL or web address to help readers locate your sources. Because web addresses are not static (i.e., they change often) and because documents sometimes appear in multiple places on the web (e.g., on multiple databases), MLA encourages the use of citing containers such as Youtube, JSTOR, Spotify, or Netflix in order to easily access and verify sources. However, MLA only requires the www. address, so eliminate all https:// when citing URLs.

Many scholarly journal articles found in databases include a DOI (digital object identifier). If a DOI is available, cite the DOI number instead of the URL.

Online newspapers and magazines sometimes include a “permalink,” which is a shortened, stable version of a URL. Look for a “share” or “cite this” button to see if a source includes a permalink. If you can find a permalink, use that instead of a URL.

Abbreviations Commonly Used with Electronic Sources

If page numbers are not available, use par. or pars. to denote paragraph numbers. Use these in place of the p. or pp. abbreviation. Par. would be used for a single paragraph, while pars. would be used for a span of two or more paragraphs.

Basic Style for Citations of Electronic Sources (Including Online Databases)

Here are some common features you should try to find before citing electronic sources in MLA style. Not every web page will provide all of the following information. However, collect as much of the following information as possible:

Use the following format:

Author. "Title." Title of container (self contained if book) , Other contributors (translators or editors), Version (edition), Number (vol. and/or no.), Publisher, Publication Date, Location (pages, paragraphs and/or URL, DOI or permalink). 2 nd container’s title , Other contributors, Version, Number, Publisher, Publication date, Location, Date of Access (if applicable).

Citing an Entire Web Site

When citing an entire website, follow the same format as listed above, but include a compiler name if no single author is available.

Author, or compiler name (if available). Name of Site. Version number (if available), Name of institution/organization affiliated with the site (sponsor or publisher), date of resource creation (if available), DOI (preferred), otherwise include a URL or permalink. Date of access (if applicable).

Editor, author, or compiler name (if available). Name of Site . Version number, Name of institution/organization affiliated with the site (sponsor or publisher), date of resource creation (if available), URL, DOI or permalink. Date of access (if applicable).

The Purdue OWL Family of Sites . The Writing Lab and OWL at Purdue and Purdue U, 2008, owl.english.purdue.edu/owl. Accessed 23 Apr. 2008.

Felluga, Dino. Guide to Literary and Critical Theory . Purdue U, 28 Nov. 2003, www.cla.purdue.edu/english/theory/. Accessed 10 May 2006.

Course or Department Websites

Give the instructor name. Then list the title of the course (or the school catalog designation for the course) in italics. Give appropriate department and school names as well, following the course title.

Felluga, Dino. Survey of the Literature of England . Purdue U, Aug. 2006, web.ics.purdue.edu/~felluga/241/241/Home.html. Accessed 31 May 2007.

English Department . Purdue U, 20 Apr. 2009, www.cla.purdue.edu/english/. Accessed 31 May 2015.

A Page on a Web Site

For an individual page on a Web site, list the author or alias if known, followed by an indication of the specific page or article being referenced. Usually, the title of the page or article appears in a header at the top of the page. Follow this with the information covered above for entire Web sites. If the publisher is the same as the website name, only list it once.

Lundman, Susan. “How to Make Vegetarian Chili.”  eHow , www.ehow.com/how_10727_make-vegetarian-chili.html. Accessed 6 July 2015.

“ Athlete's Foot - Topic Overview. ”   WebMD , 25 Sept. 2014, www.webmd.com/skin-problems-and-treatments/tc/athletes-foot-topic-overview.

Citations for e-books closely resemble those for physical books. Simply indicate that the book in question is an e-book by putting the term "e-book" in the "version" slot of the MLA template (i.e., after the author, the title of the source, the title of the container, and the names of any other contributors).

Silva, Paul J.  How to Write a Lot: A Practical Guide to Productive Academic Writing. E-book, American Psychological Association, 2007.

If the e-book is formatted for a specific reader device or service, you can indicate this by treating this information the same way you would treat a physical book's edition number. Often, this will mean replacing "e-book" with "[App/Service] ed."

Machiavelli, Niccolo.  The Prince , translated by W. K. Marriott, Kindle ed., Library of Alexandria, 2018.

Note:  The MLA considers the term "e-book" to refer to publications formatted specifically for reading with an e-book reader device (e.g., a Kindle) or a corresponding web application. These e-books will not have URLs or DOIs. If you are citing book content from an ordinary webpage with a URL, use the "A Page on a Web Site" format above.

An Image (Including a Painting, Sculpture, or Photograph)

Provide the artist's name, the work of art italicized, the date of creation, the institution and city where the work is housed. Follow this initial entry with the name of the Website in italics, and the date of access.

Goya, Francisco. The Family of Charles IV . 1800. Museo Nacional del Prado, Madrid. Museo Nacional del Prado , www.museodelprado.es/en/the-collection/art-work/the-family-of-carlos-iv/f47898fc-aa1c-48f6-a779-71759e417e74. Accessed 22 May 2006.

Klee, Paul. Twittering Machine . 1922. Museum of Modern Art, New York. The Artchive , www.artchive.com/artchive/K/klee/twittering_machine.jpg.html. Accessed May 2006.

If the work cited is available on the web only, then provide the name of the artist, the title of the work, and then follow the citation format for a website. If the work is posted via a username, use that username for the author.

Adams, Clifton R. “People Relax Beside a Swimming Pool at a Country Estate Near Phoenix, Arizona, 1928.” Found, National Geographic Creative, 2 June 2016, natgeofound.tumblr.com/.

An Article in a Web Magazine

Provide the author name, article name in quotation marks, title of the web magazine in italics, publisher name, publication date, URL, and the date of access.

Bernstein, Mark. “ 10 Tips on Writing the Living Web. ”   A List Apart: For People Who Make Websites , 16 Aug. 2002, alistapart.com/article/writeliving. Accessed 4 May 2009.

An Article in an Online Scholarly Journal

For all online scholarly journals, provide the author(s) name(s), the name of the article in quotation marks, the title of the publication in italics, all volume and issue numbers, and the year of publication. Include a DOI if available, otherwise provide a URL or permalink to help readers locate the source.

Article in an Online-only Scholarly Journal

MLA requires a page range for articles that appear in Scholarly Journals. If the journal you are citing appears exclusively in an online format (i.e. there is no corresponding print publication) that does not make use of page numbers, indicate the URL or other location information.

Dolby, Nadine. “Research in Youth Culture and Policy: Current Conditions and Future Directions.” Social Work and Society: The International Online-Only Journal, vol. 6, no. 2, 2008, www.socwork.net/sws/article/view/60/362. Accessed 20 May 2009.

Article in an Online Scholarly Journal That Also Appears in Print

Cite articles in online scholarly journals that also appear in print as you would a scholarly journal in print, including the page range of the article . Provide the URL and the date of access.

Wheelis, Mark. “ Investigating Disease Outbreaks Under a Protocol to the Biological and Toxin Weapons Convention. ”   Emerging Infectious Diseases , vol. 6, no. 6, 2000, pp. 595-600, wwwnc.cdc.gov/eid/article/6/6/00-0607_article. Accessed 8 Feb. 2009.

An Article from an Online Database (or Other Electronic Subscription Service)

Cite online databases (e.g. LexisNexis, ProQuest, JSTOR, ScienceDirect) and other subscription services as containers. Thus, provide the title of the database italicized before the DOI or URL. If a DOI is not provided, use the URL instead. Provide the date of access if you wish.

Alonso, Alvaro, and Julio A. Camargo. “ Toxicity of Nitrite to Three Species of Freshwater Invertebrates. ”   Environmental Toxicology, vol. 21, no. 1, 3 Feb. 2006, pp. 90-94. Wiley Online Library , https://doi.org/10.1002/tox.20155. Accessed 26 May 2009.

Langhamer, Claire. “Love and Courtship in Mid-Twentieth-Century England.” Historical Journal, vol. 50, no. 1, 2007, pp. 173-96. ProQuest , https://doi.org/10.1017/S0018246X06005966. Accessed 27 May 2009.

E-mail (including E-mail Interviews)

Give the author of the message, followed by the subject line in quotation marks. State to whom the message was sent with the phrase, “Received by” and the recipient’s name. Include the date the message was sent. Use standard capitalization.

Kunka, Andrew. “ Re: Modernist Literature. ”  Received by John Watts, 15 Nov. 2000.

Neyhart, David. “ Re: Online Tutoring. ” Received by Joe Barbato, 1 Dec. 2016.

A Listserv, Discussion Group, or Blog Posting

Cite web postings as you would a standard web entry. Provide the author of the work, the title of the posting in quotation marks, the web site name in italics, the publisher, and the posting date. Follow with the date of access. Include screen names as author names when author name is not known. If both names are known, place the author’s name in brackets.

Author or compiler name (if available). “Posting Title.” Name of Site , Version number (if available), Name of institution/organization affiliated with the site (sponsor or publisher), URL. Date of access.

Salmar1515 [Sal Hernandez]. “Re: Best Strategy: Fenced Pastures vs. Max Number of Rooms?” BoardGameGeek , 29 Sept. 2008, boardgamegeek.com/thread/343929/best-strategy-fenced-pastures-vs-max-number-rooms. Accessed 5 Apr. 2009.

Begin with the user's Twitter handle in place of the author’s name. Next, place the tweet in its entirety in quotations, inserting a period after the tweet within the quotations. Include the date and time of posting, using the reader's time zone; separate the date and time with a comma and end with a period. Include the date accessed if you deem necessary.

@tombrokaw. “ SC demonstrated why all the debates are the engines of this campaign. ”   Twitter, 22 Jan. 2012, 3:06 a.m., twitter.com/tombrokaw/status/160996868971704320.

@PurdueWLab. “ Spring break is around the corner, and all our locations will be open next week. ”   Twitter , 5 Mar. 2012, 12:58 p.m., twitter.com/PurdueWLab/status/176728308736737282.

A YouTube Video

Video and audio sources need to be documented using the same basic guidelines for citing print sources in MLA style. Include as much descriptive information as necessary to help readers understand the type and nature of the source you are citing. If the author’s name is the same as the uploader, only cite the author once. If the author is different from the uploader, cite the author’s name before the title.

McGonigal, Jane. “Gaming and Productivity.” YouTube , uploaded by Big Think, 3 July 2012, www.youtube.com/watch?v=mkdzy9bWW3E.

“8 Hot Dog Gadgets put to the Test.” YouTube, uploaded by Crazy Russian Hacker, 6 June 2016, www.youtube.com/watch?v=WBlpjSEtELs.

A Comment on a Website or Article

List the username as the author. Use the phrase, Comment on, before the title. Use quotation marks around the article title. Name the publisher, date, time (listed on near the comment), and the URL.

Not Omniscient Enough. Comment on “ Flight Attendant Tells Passenger to ‘Shut Up’ After Argument Over Pasta. ”  ABC News, 9 Jun 2016, 4:00 p.m., abcnews.go.com/US/flight-attendant-tells-passenger-shut-argument-pasta/story?id=39704050.

Scribbr Citation Generator

Accurate APA, MLA, Chicago, and Harvard citations, verified by experts, trusted by millions

Cite sources in seconds with Autocite

Look up your source by its title, URL, ISBN, or DOI, and let Scribbr do the rest! The Citation Generator will automatically find all the necessary information to generate a perfect citation, including the author(s), publication date, and publisher.

Perfectly formatted references every time

Inaccurate citations can cost you points on your assignments, so our seasoned citation experts have invested countless hours in perfecting Scribbr’s citation generator algorithms. We’re proud to be recommended by teachers and universities worldwide.

Enjoy a citation generator without flashy ads

Staying focused is already difficult enough, so unlike other citation generators, Scribbr won’t slow you down with flashing banner ads and video pop-ups. That’s a promise!

Citation Generator features you'll love

Look up your source by its title, URL, ISBN, or DOI, and let Scribbr find and fill in all the relevant information automatically.

APA, MLA, Chicago, and Harvard

Generate flawless citations according to the official APA, MLA, Chicago, or Harvard style rules. More citation styles will be available soon!

Export to Word

When your reference list is complete, export it to Word. We’ll apply the official formatting guidelines automatically.

Lists and folders

Create separate reference lists for each of your assignments to stay organized. You can also group related lists into folders.

Export to Bib(La)TeX

Are you using a LaTex editor like Overleaf? If so, you can easily export your references in Bib(La)TeX format with a single click.

Custom fonts

Change the typeface used for your reference list to match the rest of your document. Options include Times New Roman, Arial, and Calibri.

Industry-standard technology

Scribbr’s Citation Generator is built using the same citation software (CSL) as Mendeley and Zotero, but with an added layer for improved accuracy.

Annotations

Describe or evaluate your sources in annotations, and Scribbr will generate a perfectly formatted annotated bibliography .

Citation guides

Scribbr’s popular guides and videos will help you understand everything related to finding, evaluating, and citing sources.

Secure backup

Your work is saved automatically after every change and stored securely in your Scribbr account.

Evaluating sources

Citing sources

Tools and resources, a quick guide to working with sources.

Working with sources is an important skill that you’ll need throughout your academic career.

It includes knowing how to find relevant sources, assessing their authority and credibility, and understanding how to integrate sources into your work with proper referencing.

This quick guide will help you get started!

Finding relevant sources

Sources commonly used in academic writing include academic journals, scholarly books, websites, newspapers, and encyclopedias. There are three main places to look for such sources:

When using academic databases or search engines, you can use Boolean operators to refine your results.

Generate APA, MLA, Chicago, and Harvard citations in seconds

Get started

In academic writing, your sources should be credible, up to date, and relevant to your research topic. Useful approaches to evaluating sources include the CRAAP test and lateral reading.

CRAAP is an abbreviation that reminds you of a set of questions to ask yourself when evaluating information.

Lateral reading

Lateral reading means comparing your source to other sources. This allows you to:

If a source is using methods or drawing conclusions that are incompatible with other research in its field, it may not be reliable.

Integrating sources into your work

Once you have found information that you want to include in your paper, signal phrases can help you to introduce it. Here are a few examples:

Following the signal phrase, you can choose to quote, paraphrase or summarize the source.

Whenever you quote, paraphrase, or summarize a source, you must include a citation crediting the original author.

Citing your sources is important because it:

The most common citation styles are APA, MLA, and Chicago style. Each citation style has specific rules for formatting citations.

Generate APA, MLA, Chicago,  and Harvard citations in seconds

Scribbr offers tons of tools and resources to make working with sources easier and faster. Take a look at our top picks:

Search for books, articles, media and more

Check the current status of our systems, applications, and online resources

Search the Library Website

Looking for a book, article, database or something else for your research, what is plagiarism.

Plagiarism is defined as "a piece of writing that has been copied from someone else and is presented as being your own work" or "taking someone's words or ideas as if they were your own"  [ 1 ]

Plagiarism is a serious issue in the academic community. While plagiarism sometimes does occur intentionally, it also occurs because the writer doesn’t understand or does not know how to avoid it. Please visit our online tutorial:  Plagiarism 101  for an entertaining and interesting look at why people plagiarize and strategies to avoid it.

Plagiarism occurs when you use someone else’s ideas and PRETEND they are your own. Avoiding plagiarism doesn’t mean that you can never use other people’s ideas. It’s a widely known secret that in fact you CAN use other peoples’ ideas and even their words. For many research papers you NEED to do this in order to prove your own points. So use their ideas! Use their words! Professors expect to see in your writing that you’ve done your research and understand what the experts think when you formed your own opinions. The trick is to acknowledge who these expert ideas really belong to by CITING them!

So let’s assume you don’t want to plagiarize, you’ve given yourself enough time to do it right, but you’re still not sure about “putting things in your own words,” judging when to cite work, or how to cite it. Read on for more information and examples.

Why acknowledge sources?

Doing research for a paper is an exploration and learning process. By acknowledging our sources we show our reader the path we took to come to our conclusions. Citing the authors we read shows how we tied others’ research and ideas together and how we came to learn about and develop our own ideas and opinions.

Why should you cite your sources?

1. Citations reflect the careful and thorough work you have put into locating and exploring your sources.

2. Citations help readers understand the context of your argument and are a courtesy to the reader, who may share your interest in a particular area of study.

3. Citations allow you to acknowledge those authors who contributed to your learning and your work.

4. Citations, by illustrating your own learning process, also draw attention to the originality and legitimacy of your own ideas.

5. By citing sources you demonstrate your integrity and skill as a responsible student and participant in your field of study.  [ 2 ]

When to cite sources

While professors and scholars may have specific requirements based on the needs of their discipline, there are cases where you should  always  cite your sources.

1. Direct quotes of more than one word.  If the author’s words are powerful or you need to be specific for your argument, the authors’ words can be used as a direct quote.

2. Paraphrasing or summarizing.  If you want to use someone else’s idea to help you make your point or to support your own ideas, in this case you would “translate” the ideas into your own words.

3. Information which may be common knowledge  but still unfamiliar to your reader. This would also include statistical information which may be familiar information but still requires confirmation.

4. Not just books or articles  should be cited. Any source that you use for information can and should be cited including interviews, websites, TV programs, etc.

5. Whenever you are not sure  if something should be cited, err on the side of caution and cite sources.

Let’s look at some examples…

Direct quotes

How much you quote will determine how it appears in the body of your paper but whether it is one word or an entire paragraph, direct quotes need to be cited.

Lappe’s explanation of a "thin democracy"  [ 3 ]  addresses a number of basic flaws within our American society.

Global warming is being recognized as a major issue throughout the world and as Al Gore instructs, "it is time to make peace with our planet."  [ 4 ]

Paraphrasing or Summarizing

This involves translating what you have read (or heard) and putting it into your own words. Paraphrasing typically refers to putting an idea or passage into your own words. Summarizing involves capturing the main idea or reducing a detailed piece to a shorter and more general synopsis.

Here's an example:

"Instructors usually allow students to find their own topics for a major writing assignment; thus choose something of interest to you so you won’t get bored after a few days. At the same time, your chosen topic will need a scholarly perspective." [ 5 ]

Paraphrase : When students are permitted to select their own topic to write about they should choose one that is interesting to them. The topic should also be scholarly in nature so that students will be able to find appropriate research and resources on the topic.  [ 5 ]

Summary : Students should select writing topics that are interesting and also lend themselves to academic research.  [ 5 ]

A summary generally addresses the overall theme of a passage, article, opinion, etc. while a paraphrase generally restates a more specific thought or idea. The difference between summarizing and paraphrasing is sometimes obvious and sometimes subtle — do you see the difference?

Common Knowledge? Or Not?

Some basic facts are common knowledge and easily confirmed from a variety of sources. Statistics should always be cited, as well as opinions and less familiar facts. Information that is considered well-known within your field of study will also help determine if it is considered common or not. However, if you are not sure, cite it!

The University at Albany located in Albany, New York and is part of the State University of New York.

This is common knowledge and easily confirmed in a multitude of sources.

The State University of New York was officially established in February of 1948 and currently consists of 64 institutions. The University at Albany is one of ten University Centers that are part of the SUNY system.  [ 6 ]

While the SUNY system is well known and these facts are easily confirmed, specific historical information or statistics should be cited.

How to cite?

We’ve talked about plagiarism as well as why and when to cite. The next question is "How?"

There are  two things you need to know  from your professor.

The FIRST is how you will reference your sources within your paper. Generally you will use one of the following options:

The SECOND thing you need to know is what Format and Style Guide to use. There are very specific rules about how to do this that are not included in this document. Your professor will tell you which s/he wants you to follow. The choices will typically be one of the following:

Please visit the University Libraries' Citation Basics research guide  for information and instructions on these style guides. Once you know what your professor wants you will need to follow the rules of that format accordingly.

[ 1 ]  "Plagiarism."  WordNet 3.0 . Princeton University. 03 Apr. 2008.  Dictionary.com http://dictionary.reference.com/browse/plagiarism .

[ 2 ] Adapted from "Sources and Citation at Dartmouth College." Dartmouth College. 1998. Retrieved 9 Feb 2009.  http://www.dartmouth.edu/~writing/sources/sources-citation.html

[ 3 ] Lappe, Frances Moore.  Getting a Grip.  Cambridge, MA : Small Planet Media, 2007.

[ 4 ] Gore, Al. "Nobel Prize Acceptance Speech."  Al’s Journal . December 10, 2007. Retrieved April 10, 2008  http://blog.algore.com/2007/12/nobel_prize_acceptance_speech.html

[ 5 ] Lester, James D. & James D. Lester Jr.  Writing Research Papers: A Complete Guide, 11th Ed.  New York: Pearson Education, 2005.

[ 6 ] "Short History of SUNY." The State University of New York. 2008. Retrieved April 25, 2008.  http://www.suny.edu/student/university_suny_history.cfm

Still Have Questions?

IMAGES

  1. MLA Sample Works Cited Page

    cited sources in a research paper

  2. 015 Research Paper Parenthetical Citation Example ~ Museumlegs

    cited sources in a research paper

  3. 001 Examples Of Sources Cited In Research Paper ~ Museumlegs

    cited sources in a research paper

  4. esearch paper sources cited mla format

    cited sources in a research paper

  5. 003 Mla Research Paper Citing Model ~ Museumlegs

    cited sources in a research paper

  6. Works Cited Template Mla Collection

    cited sources in a research paper

VIDEO

  1. Works Cited 3

  2. Searching for an Author's Highly Cited Papers in Web of Science

  3. 4Cs of getting cited

  4. sited VS cited

  5. Scholarly Publishing Series: Keep it simple

  6. Lecture 07: 2 of 2 MATLAB Code of Fractional Euler Method for a System of ODEs under CF Operator

COMMENTS

  1. In-Text Citations: The Basics - Purdue OWL® - Purdue University

    If you refer to the title of a source within your paper, capitalize all words that are four letters long or greater within the title of a source: Permanence and Change. Exceptions apply to short words that are verbs, nouns, pronouns, adjectives, and adverbs: Writing New Media , There Is Nothing Left to Lose.

  2. How to Cite Sources | Citation Generator & Quick Guide - Scribbr

    Citing your sources is essential in academic writing. Whenever you quote or paraphrase a source (such as a book, article, or webpage), you have to include a citation crediting the original author. Failing to properly cite your sources counts as plagiarism, since you’re presenting someone else’s ideas as if they were your own.

  3. APA/MLA - How to Cite Sources in Your Research Paper ...

    The in-text component of APA citation includes two main elements: the author's last name and the year of the publication (e.g., Ross, 1997), and a third: the page number, whenever quoting directly or paraphrasing a specific section of the text (e.g., Ross, 1997, p. 2). For more than one author, list the names in the order they appear in the source.

  4. How to Cite Sources | Citation Examples for APA ... - EasyBib

    APA is used when citing sources for academic articles such as journals, and is intended to help readers better comprehend content, and to avoid language bias wherever possible. The APA style (or APA format) is now in its 7th edition, and provides citation style guides for virtually any type of resource. Examples Blog Post Book Book Chapter

  5. MLA Works Cited: Electronic Sources - Purdue OWL® - Purdue ...

    MLA Works Cited: Electronic Sources (Web Publications) The MLA Handbook highlights principles over prescriptive practices. Essentially, a writer will need to take note of primary elements in every source, such as author, title, etc. and then assort them in a general format.

  6. How To Cite a Research Paper: Citation Styles Guide

    In the next few sections, we’ll provide basic guides on how to cite various sources using four popular citation formats: (1) APA, (2) MLA, (3) Chicago/Turabian, and (4) IEEE. APA Style Citation Guide APA stands for American Psychological Association. The APA style for citation is popular among behavioral and social science journals.

  7. Free Citation Generator | APA, MLA, Chicago | Scribbr

    Citing your sources is important because it: Allows you to avoid plagiarism Establishes the credentials of your sources Backs up your arguments with evidence Allows your reader to verify the legitimacy of your conclusions The most common citation styles are APA, MLA, and Chicago style.

  8. When and Why to Cite Sources - | University Libraries

    Why should you cite your sources? 1. Citations reflect the careful and thorough work you have put into locating and exploring your sources. 2. Citations help readers understand the context of your argument and are a courtesy to the reader, who may share your interest in a particular area of study. 3.