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HIST 1000: Nature in History (Olfelt): Citing Sources

Chicago Style Guides

Purdue Owl's Chicago Style Guide
An online guide to citing sources and formatting papers in Chicago style.
A Manual for Writers of Research Papers, Theses, and Dissertations
Call Number: LB2369 .T8 2007
The Chicago Manual of Style
Call Number: REF Z253 .U69 2010

When to Cite Sources

You must cite a source in all of the following situations:

Using a direct quote from another author
Paraphrasing the words of another author
Including another author's ideas, even if you disagree with them
Whenever you're not sure whether or not you need to cite a source

Sample Annotated Bibliographies

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Last Updated: Jul 30, 2025 5:28 PM
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