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ACS Style Guide

In January 2020, a new digital-first edition of the ACS Guide to Scholarly Communication was released. SFU Library does not have access to the 2020 online edition at this time. Although the new edition has been updated and expanded with new chapters, the basics of ACS Citation remain the same. Please refer to the Quick Style Guide document below for examples.

What is a Digital Object Identifier (DOI or doi) and where can I find it? 

DOI is a unique alphanumeric string that identifies an article and provides a stable link to its location in cyberspace. DOIs may be found on the first page of a downloaded article. Look for a number that starts with a "10" like in these examples:

10.1037/0278-6133.27.3.379     or     https://doi.org/10.1037/0278-6133.27.3.379      or    http://dx.doi.org10.1037/0278-6133.27.3.379

Guidelines for DOIs and URLs:

Include a DOI for all works that have a DOI, regardless of whether you used the print or online version.

If an online work has a DOI and a URL, include only the DOI. 

Regardless of the format that you find the DOI listed, provide it in the preferred format ... https://doi.org/10.XXXX/aXXXXXXX

If your article does not have a doi, use crossref.org                         

Choose Search Metadata and paste your article title.


A URL (Uniform Resource Locator) specifies the location of digital information on the internet and can be found in the address bar of your Internet browser. document and file name. Use a URL in citations for websites, not for articles except when you cannot determine the DOI from the document itself or after searching crossref.org.