Contributors are people who contribute to the creation of a work without being the primary author. Contributors include:
When there are Contributors, always include a label describing the role played, such as:
Often, there are no Contributors, and if that is the case, skip to the next element.
18. Contributor
Describe the contributor’s role where appropriate (e.g., edited by, directed by, translated by, performed by, etc.). Capitalize the first letter in the role if it follows a period, but start with a lowercase letter if it follows a comma. The contributor name is written first name first and last name last. Use the et al. abbreviation when there are more than two contributors.
Abrams, M.H. “King Alfred (849–899).” Norton Anthology of English Literature, edited by Stephen Greenblatt, et al., 9th ed., vol. 1, Norton, 2012, pp. 108-111.
21 Proms. Edited by David Levithan and Daniel Ehrenhaft, Push, 2007.