APA (6th ed.):
ProCon.org. (2014, November 14). Gay Marriage Timeline, 1970-2014. Retrieved from https://www.procon.org/gay-marriage-timeline-1970-2014/
[Editor's Note: The APA citation style requires double spacing within entries.]
Chicago (17th ed.):
ProCon.org, "Gay Marriage Timeline, 1970-2014," ProCon.org. last modified November 14, 2014. https://www.procon.org/gay-marriage-timeline-1970-2014/.
MLA (8th ed.):
ProCon.org, "Gay Marriage Timeline, 1970-2014." ProCon.org. 14 Nov. 2014, www.procon.org/gay-marriage-timeline-1970-2014/
[Editor’s Note: The MLA citation style requires double spacing within entries.]
Turabian (8th ed.):
ProCon.org. "Gay Marriage Timeline, 1970-2014." ProCon.org. Last modified on November 14, 2014. Accessed January 23, 2021. https://www.procon.org/gay-marriage-timeline-1970-2014/