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Iowa State University
This page will provide links to various types of style guides available on the Internet. Use these to format citations for papers.
Last Updated: Jul 19, 2014 URL: Print Guide RSS Updates

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Why style guides?

When you are doing research papers, often instructors will indicate that they want you to use a particular kind of style in citing references.  There are ones used for the social sciences, the humanities, and the sciences. 


The most popular are American Psychological Association (APA), Modern Language Association (MLA) and Chicago.  Turabian is a very useful style guide if your instructors do not indicate a particular type. 


In any case, you need to cite your sources in such a manner that other can go to the sources you used in your papers.  And it is very important to be consistent in your citation styles.

Citation help

The following are free resources that can help you generate citations of various styles by just inputting the citation information. 

  • BibMe
    Creates citations in ALA, APA, Chicago, or Turabian styles.
  • EasyBib
    Citations in MLA style are free. For other styles, you must subscribe.
  • Knight Cite
    KnightCite can generate citations in MLA, APA, and Chicago Manual formats.
  • Mendeley
    Mendeley not only creates citations, but helps you organize and share your research with others.
  • Son of Citation Machine
    Formats in MLA, APA, Turabian, and Chicago formats.

General Sites

Other citation styles:

The tabs above include the most often-used citation style guides.  However, there are a few others that you might be asked to use.  Some of these are listed here.

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