Reference list entry
Samuel, T. (2009, March 27). Mind the wage gap [Supplemental material]. The American Prospect. Retrieved from http://www.prospect.org/
Explain
Give whatever publication information is available in the source and add the description “Supplemental material” in brackets after the title.
Note on breaking URLs and DOIs
If you must break a URL or a DOI at the end of a line, break it after a double slash or before any other mark of punctuation.
Do not add a hyphen.
Do not put a period at the end of the entry.
Directory to APA reference list models
Exercise: APA documentation: identifying elements of sources
Exercise: APA documentation: reference list 1
Exercise: APA documentation: reference list 2