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Penrose Library

Citation Styles and Tools: Home

How to construct citations in MLA, Chicago, APA, ACS, and ASA, and tools that can help you


In this guide you will find guidance and resources for constructing your citations for the most common style guides used on campus as well as tools that can help you manage your citations and create your bibliographies, footnotes, in-text citations, and anything else you might need.

Why do we cite?

Citations are important for a number of reasons:

  • Allows readers to find a source you utilized
  • Gives credit to the creators whose work provides a foundation to yours
  • Gives credibility and support to your argument
  • Avoids plagiarism

General Citation Resources

The OWL: The Purdue Online Writing Lab—This is a great resource for learning about style and citation in writing research papers.

Research and documentation in the digital age  Feautres sample student papers and 325 documentation models that guide students as they cite common sources and newer sources – such as blogs, podcasts, online videos, and reposted Web content – in MLA, Chicago, and CSE styles.  Whitman College Library Reference Collection (ZA4375 .H327 2015 )

Knight Citation Creation Tool—This tool will help you create properly formatted citations in MLA, APA, or Chicago format.

Citation creation websites

EasyBib and other sites can be helpful in quickly creating citations for you, but they depend on the information you give them, and might not always pull the correct data or formatting. If you do use sites like this, always look over the citations it gives you to make sure they look right. The same is true for the citations created by Sherlock! When in doubt, tools like the Knight Citation Creation Tool will be much more likely to give you a proper citation, because they depend on your input of all elements, which does mean it takes a little more time.


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