List the date published (copyright date, date posted online, or the date last updated) in the order of day then month then year with no commas in between like 19 Jan 2017.
If you can't find a full date, use the most accurate you can find even if it's only a single year or range of years.
Example Date Output
Date ends in comma if you still have a URL to give as location afterwards
Parker, Peter. "Tensile Strength of Titanium Webs." The Science of Me, edited by Tony Stark, 4th ed., Marvel, Inc., 13 July 2002,
If no location, ends with period.
Parker, Peter. The Science of Me, edited by Tony Stark, 4th ed., Marvel, Inc., 13 July 2002.
No exact date with a URL to still add afterwards
McCoy, Hank. "Theories on the Origins of Inhumans." Ongoing Mutation Research, other contributions by Charles Xavier, Xavier Foundation for the Gifted and Talented, 2001-2017,