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Citation Styles

Citing tips and tricks from several styles.

What is ACS Style? 

Developed by the American Chemical Society, this style may be used for research papers in the field of chemistry.

This guide provides examples of the most commonly cited types of sources. For additional examples and explanations, see The ACS Style Guide or the 2nd edition print manual in Alden Library QD8.5 .A25 1997.

Each citation consists of two parts: the in-text citation, which provides brief identifying information within the text, and the reference list, a list of sources that provides full bibliographic information.

How to Format: In-Text Citations | Reference Lists

In-Text Citations

(For more detailed information see ACS Style Guide, pp 287-290.)

Select one of the three methods below to cite in-text references:

Superscript numbers

At the end of the cited information:
Fluoridated water as well as various fluoride products such as toothpaste provide fluoride ions necessary for remineralization.¹

Within the cited information:
Rakita¹ states that fluoridated water as well as various fluoride products such as toothpaste provide fluoride ions necessary for remineralization.

Italic numbers

At the end of the cited information:
Fluoridated water as well as various fluoride products such as toothpaste provide fluoride ions necessary for remineralization (1).

Within the cited information:
Rakita (1) states that fluoridated water as well as various fluoride products such as toothpaste provide fluoride ions necessary for remineralization.

Author name and year of publication

At the end of the cited information:
Fluoridated water as well as various fluoride products such as toothpaste provide fluoride ions necessary for remineralization (Rakita, 2004).

Within the cited information:
Rakita states that fluoridated water as well as various fluoride products such as toothpaste provide fluoride ions necessary for remineralization (2004).

Note: for two authors use "and": Rakita and Smith. For more than two authors use "et al.": Rakita et al.

Reference Lists

Books | Articles | Theses, Patents, Conferences | Web/Online

Books

(ACS Style Guide, pp 300-305)

CITATION TYPE EXAMPLE
Single author

Chang, R. General Chemistry: The Essential Concepts, 3rd ed.; McGraw-Hill: Boston, 2003.

Edited Book

Gbalint-Kurti, G. G. Wavepacket Theory of Photodissociation and Reactive Scattering. In Advances in Chemical Physics; Rice, S. A., Ed.; Wiley: New York, 2004; Vol. 128; p 257.

Book in Series

Goh, S. L. Polymer Chemistry in an Undergraduate Curriculum. In Introduction of Macromolecular Science/Polymeric Materials into the Foundational Course in Organic Chemistry; ACS Symposium Series 1151; American Chemical Society: Washington, DC, 2013; pp 113-127.

Article from a reference book

Powder Metallurgy. Kirk-Othmer Encyclopedia of Chemical Technology, 3rd ed.; Wiley: New York, 1982; Vol. 19, pp 28-62.

Articles

(ACS Style Guide, pp. 291-299 and pp. 317-319 for online articles )

CITATION TYPE EXAMPLE
Article in a scientific journal

Evans, D. A.; Fitch, D. M.; Smith, T. E.; Cee, V. J. Application of Complex Aldol Reactions to the Total Synthesis of Phorboxazole B. J. Am. Chem. Soc. 2000, 122, 10033-10046.

Article in a popular/non-scientific magazine

Manning, R. Super Organics. Wired, May 2004, pp 176-181.

Article from an online journal

Peacock-Lopez, E. Exact Solutions of the Quantum Double Square-Well Potential. Chem. Ed. [Online] 2007, 11, 383-393 http://chemeducator.org/bibs/0011006/11060380lb.htm (accessed Aug 23, 2007).

Theses, Patents, Conferences, Technical Reports

(ACS Style Guide, pp 307-316)

CITATION TYPE EXAMPLE
Theses

Thoman, J. W., Jr. Studies of Molecular Deactivation: Surface-Active Free Radicals and S(O)para-difluorobenzene. Ph.D. Dissertation, Massachusetts Institute of Technology, Cambridge, MA, 1987.

or

Gehring, A. PhD. Dissertation, Harvard University, 1998.

Patents

Diamond, G.; Murphy, V.; Leclerc, M.; Goh, C.; Hall, K.; LaPointe, A. M.; Boussie, T.; Lund, C. Coordination catalysts. US 20020002257 A1, January 3, 2002.

Conference/Meetings (full-text)

Winstein, S. In University Chemical Education, Proceedings of the International Symposium on University Chemical Education, Frascati (Rome), Italy, October 16-19, 1969; Chisman, D. G.. Ed.; Butterworths: London, 1970.

Conference/Meetings (abstract only)

Kaplan, L.J.; Selder, A. Books of Abstracts, 213th ACS National Meeting, San Francisco, CA, April 13-17, 1997; American Chemical Society: Washington, DC, 1997; CHED-824.

Technical Report or Bulletin

Crampton, S.B.; McAllaster, D. R. Collision and Motional Averaging Effects in Cryogenic Atomic Hydrogen Masers; WMC-AFOSR-002; NTIS: Springfield, VA, 1983.

Web/Online

(ACS Style Guide, pp 316-325)

Note: Different web browsers break the text in different places of a URL. In a printed work, if the URL needs to be broken at the end of a line, the break should be made after a colon or a double slash; before a single slash, a tilde, a period, a comma, a hyphen, an underline, a question mark, a number sign, or a percent symbol; or before or after an equals sign or an ampersand. (CMS 14.2)

CITATION TYPE EXAMPLE
Web page

National Library of Medicine. Environmental Health and Toxicology: Specialized Information Services. http://sis.nlm.nih.gov/enviro.html (accessed Aug 23, 2004).

Article from an online journal

Peacock-Lopez, E. Exact Solutions of the Quantum Double Square-Well Potential. Chem. Ed. [Online] 2007, 11, 383-393 http://chemeducator.org/bibs/0011006/11060383ep.htm (accessed Dec 6, 2018).

Article from full text database

Begley, S. When Does Your Brain Stop Making New Neurons? Newsweek [Online] July 2, 2007, p 62. Expanded Academic Index. http:/galegroup.com (accessed Aug 23, 2007).

Article published online in advance

Chung, J.M. and Peacock-Lopez, E. Cross-diffusion in the Templator model of chemical self-replication. Phys. Lett. A [Online early access]. DOI:10.1016/j.physleta.2007.04.114. Published Online: June 12, 2007. http://www.sciencedirect.com (accessed Aug 23, 2007).

Computer Program

SciFinder Scholar, version 2007; Chemical Abstracts Service: Columbus, OH, 2007; RN 58-08-2 (accessed Aug 23, 2007).