APA (6th ed.):
ProCon.org. (2015, September 17). Arthur James Balfour. Retrieved from https://israelipalestinian.procon.org/source-biographies/arthur-james-balfour/
[Editor's Note: The APA citation style requires double spacing within entries.]
Chicago (17th ed.):
ProCon.org, "Arthur James Balfour," ProCon.org. last modified September 17, 2015. https://israelipalestinian.procon.org/source-biographies/arthur-james-balfour/.
MLA (8th ed.):
ProCon.org, "Arthur James Balfour." ProCon.org. 17 Sep. 2015, israelipalestinian.procon.org/source-biographies/arthur-james-balfour/
[Editor’s Note: The MLA citation style requires double spacing within entries.]
Turabian (8th ed.):
ProCon.org. "Arthur James Balfour." ProCon.org. Last modified on September 17, 2015. Accessed January 22, 2021. https://israelipalestinian.procon.org/source-biographies/arthur-james-balfour/