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Chicago Manual of Style (17th ed.)

Online Dictionary or Encyclopedia

(Chicago Manual of Style 14.233)



Title, s.v. "Entry Title," last modified/date accessed, DOI/URL.


Author of Entry, "Entry Title," in Title, compiler or editor (Publisher, Date of publication), DOI/URL.


1. Wikipedia, s.v. “Library science,” last modified December 7, 2013, http://en.wikipedia.org/wiki/Library_science.

2. Grove Art Online, s.v. “Monet, (Oscar-)Claude,” by Joel Isaacson, accessed December 9, 2013, http://www.oxfordartonline.com/subscriber/article/grove/art/T059077

3. Joost Augusteijn, “Sinn Feine,” in The Oxford Companion to Irish History, 2nd ed., ed. S.J. Connolly (Oxford University Press, 2002). http://www.oxfordreference.com/view /10.1093/acref/9780199234837.001.0001/acref-9780199234837-e-4.



Author of Entry. "Entry Title"." In Title, compiler or editor. Publisher, Date of publication. DOI/URL.


Augusteijn, Joost. “Sinn Féine.” In The Oxford Companion to Irish History, 2nd ed., edited by S. J. Connolly. Oxford University Press, 2002. http://www.oxfordreference.com/view /10.1093/acref/9780199234837.001.0001/acref-9780199234837-e-4.

Helpful Hints

If no revision date available include an access date.

Use a DOI instead of a URL if it is available.

See 14.18 for where to put line breaks for DOIs or URLs.

Works that have substantial authored entries may most appropriately be cited by individual entries. These would also be included in the bibliography.

Any edition other than the first must be specified.

Include _ ed. _ vols. after title if needed.

In a work that is arranged alphabetically by entry include s.v. or s.vv. (plural) followed by the names of the entry/entries instead of the page number.