Answered By: Sophie Farrar
Last Updated: Aug 27, 2018     Views: 8

Et al. means and others and there are times when you must use it in your in-text references (APA) or footnotes (Chicago).

Chicago Style:

For works by (or edited by) four to ten persons, all names are usually given in the bibliography.  In a footnote, only the name of the first author is included, followed by et al. with no intervening comma. See the Referencing Guide for examples.

APA Style:

Use et al. when the work you are referencing has three of more authors - see the Referencing Guide for examples.