APA (6th ed.):
ProCon.org. (2009, January 8). Gary A. Green, MD. Retrieved from https://sportsanddrugs.procon.org/source-biographies/gary-a-green/
[Editor's Note: The APA citation style requires double spacing within entries.]
Chicago (17th ed.):
ProCon.org, "Gary A. Green, MD," ProCon.org. last modified January 8, 2009. https://sportsanddrugs.procon.org/source-biographies/gary-a-green/.
MLA (8th ed.):
ProCon.org, "Gary A. Green, MD." ProCon.org. 8 Jan. 2009, sportsanddrugs.procon.org/source-biographies/gary-a-green/
[Editor’s Note: The MLA citation style requires double spacing within entries.]
Turabian (8th ed.):
ProCon.org. "Gary A. Green, MD." ProCon.org. Last modified on January 8, 2009. Accessed April 17, 2021. https://sportsanddrugs.procon.org/source-biographies/gary-a-green/