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Chemical Engineering

Library databases and information sources for Chemical and Materials Science Engineering

Style Guides on the Web


  • How to Cite Digitized Primary Sources (Library of Congress)  Examples in Chicago and MLA; how to cite electronic reproductions of primary sources, including film, photographs, legal and government publications, maps, recorded sound, text, and other special sources.
  • Sources and Citations at Dartmouth at (Dartmouth College) Not a style manual per se, but a writer's guide to academic integrity, citing sources, and evaluation of sources.

APA (American Psychological Association)

Chicago (Turabian) Style

MLA (Modern Language Association)

Government and Legal Publications 

IEEE Citation Style

Other Forms


Formatting Papers

Citing Generative AI Output

Using generative AI such as ChatGPT to create text raises unique issues in citation.

From the APA link below: "Unfortunately, the results of a ChatGPT “chat” are not retrievable by other readers, and although nonretrievable data or quotations ... are usually cited as personal communications, with ChatGPT-generated text there is no person communicating." [emphasis added]

Also: "You may also put the full text of long responses from ChatGPT in an appendix of your paper or in online supplemental materials, so readers have access to the exact text that was generated. It is particularly important to document the exact text created because ChatGPT will generate a unique response in each chat session, even if given the same prompt." [emphasis added]

Reference Managers

Citation-Generating Web Sites


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