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Academic Writing: Citation Systems & Tools

A guide to writing resources at the Caltech Library and on the Web.

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Commonly Used STEM Citation Styles

Chemistry: ACS Style Guide
Open Access

Citing Medicine
Open Access

Physics: APS Online Style Manual
Open Access

Commonly Used Humanities & Social Science Styles

APA Style

Publication manual of the American Psychological Association (APA)

The Chicago Manual of Style Online 17th ed.

A Manual for Writers of Research Papers, Theses, and Dissertations, Ninth Edition (Turabian)

More information about all of these styles is available at the Purdue Writing Lab

Zotero Citation Manager Program

Zotero at Caltech
Information on getting started with Zotero at Caltech.