Citation Styles

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The Association for Computing Machinery (ACM) is the world's largest educational and scientific computing society. ACM is based in the US, and is organized into local chapters and numerous Special Interest Groups (SIGs). ACM publishes over 50 journals and hosts numerous national conferences.

ACM Style

Guide to in-text citations for ACM publications.

ACM uses the Chicago Manual of Style for text formatting.

About Reference Formats

Example of a numerical entry for a webpage in the reference list:

[1] Jakob Nielsen. 2020. 10 Usability Heuristics for User Interface Design. Retrieved August 13,
2021 from https://www.nngroup.com/articles/ten-usability-heuristics/

Please note: many websites show examples of ACM citations using author's surname and initials. Some show them in all caps. In the examples on ACM's own website, author names are given in full, first name first. e.g.:

[1] Patricia S. Abril and Robert Plant. 2007. The patent holder's dilemma: Buy, sell, or troll? Commun. ACM 50, 1 (Jan. 2007), 36-44. DOI: https://doi.org/10.1145/1188913.1188915

[1] David Kosiur. 2001. Understanding Policy-Based Networking (2nd. ed.). Wiley, New York, NY.

Where to go for Help

Resources for authors submitting to ACM publications. In-text citation guide.

How to submit to ACM journals. This page includes templates for formatting your manuscript using Microsoft Word or LaTeX.

ACM Style Examples

Cryptids are animals whose existence is disputed.[2:1] Nessie is one example.[1:258] Bigfoot is another cryptid.[3:27]

[1] Ed Cray. 1959. Loch Ness Monster. West. Folk. 18, 3 (July 1959), 258–259. https://doi.org/10.2307/1497725

[2] Samantha Hurn (Ed.). 2016. Anthropology and Cryptozoology: Exploring Encounters with Mysterious Creatures. Routledge, New York. Retrieved December 6, 2023 from http://www.myilibrary.com?id=968086

[3] Ron Westrum. 1980. Sasquatch and Scientists: Reporting Scientific Anomalies. In Manlike Monsters on Trial: Early Records and Modern Evidence, Marjorie M. Halpin and Michael M. Ames (eds.). University of British Columbia Press, Vancouver, BC, 27–36. https://doi.org/10.59962/9780774857857-006

Sample Books for Citations

Book

Title: Anthropology and Cryptozoology: Exploring Encounters with Mysterious Creatures

Editor: Samantha Hurn

Publisher: Routledge

Place of Publication: New York

Date of Publication: 2016

Book Section

Chapter Title: Sasquatch and Scientists: Reporting Scientific Anomalies

Chapter Author: Ron Westrum

Book Title: Manlike Monsters on Trial: Early Records and Modern Evidence

Book Editors: Marjorie M. Halpin and Michael M. Ames

Publisher: University of British Columbia Press

Place of Publication: Vancouver, BC

Date of Publication: 1980

Pages: 27-36

Journal Article

Article Title: Loch Ness Monster

Author: Ed Cray

Journal Title: Western Folklore

Volume: 18

Issue: 3

Date: 1959

Pages: 258-259