APA (6th ed.):
ProCon.org. (2013, January 4). How many people in the United States use medical marijuana? Retrieved from https://www.procon.org/how-many-people-in-the-united-states-use-medical-marijuana/
[Editor's Note: The APA citation style requires double spacing within entries.]
Chicago (17th ed.):
ProCon.org, "How many people in the United States use medical marijuana?," ProCon.org. last modified January 4, 2013. https://www.procon.org/how-many-people-in-the-united-states-use-medical-marijuana/.
MLA (8th ed.):
ProCon.org, "How many people in the United States use medical marijuana?" ProCon.org. 4 Jan. 2013, www.procon.org/how-many-people-in-the-united-states-use-medical-marijuana/
[Editor’s Note: The MLA citation style requires double spacing within entries.]
Turabian (8th ed.):
ProCon.org. "How many people in the United States use medical marijuana?" ProCon.org. Last modified on January 4, 2013. Accessed January 15, 2021. https://www.procon.org/how-many-people-in-the-united-states-use-medical-marijuana/