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Chicago (17th ed.) Style Guide

An introductory guide to creating notes and bibliography entries in accordance with the 17th edition of the Chicago Manual of Style (2017).

Who Should Use Chicago Citation Style?

Chicago Style is used in both the humanities and social sciences. There are two documentation systems within Chicago Style: notes-bibliography and author-date. The notes-bibliography system is preferred by many in literature, history, and the arts. The author-date system is more precise and generally used by the physical, natural, and social sciences. Choosing which of these systems is most appropriate often depends on the subject matter and the type(s) of sources being cited.

Other Disciplines Using Chicago Style Include But Are Not Limited to:

  • Business
  • Library Science
  • Publishing fields (such as Journalism)

How To Use This Guide

The material on this guide focuses primarily on the Notes-Bibliography System, which is used by those working in literature, history, and the arts. The other documentation style, the Author-Date System, is nearly identical in content but slightly different in form and is preferred by those working in the social sciences.

This guide is divided into several sections. The main page provides an overview of the Chicago citation style and who should use it, followed by available print and online sources. The rest of the guide is divided into formatting tips and examples of how different resources are cited both as a note and as a bibliographic entry.

The Chicago Manual of Style

Other Online Resources

These online sources are helpful in resolving citation style questions. However, they are not all official Chicago Style guides, but rather interpretations of the citation style and may be prone to inaccuracies. Always consult the official style manual first for the most accurate information.