APA (6th ed.):
ProCon.org. (2011, February 4). UPDATED: Statistical Comparison of US Presidential Terms, 1981-2009. Retrieved from https://www.procon.org/updated-statistical-comparison-of-us-presidential-terms-1981-2009/
[Editor's Note: The APA citation style requires double spacing within entries.]
Chicago (17th ed.):
ProCon.org, "UPDATED: Statistical Comparison of US Presidential Terms, 1981-2009," ProCon.org. last modified February 4, 2011. https://www.procon.org/updated-statistical-comparison-of-us-presidential-terms-1981-2009/.
MLA (8th ed.):
ProCon.org, "UPDATED: Statistical Comparison of US Presidential Terms, 1981-2009." ProCon.org. 4 Feb. 2011, www.procon.org/updated-statistical-comparison-of-us-presidential-terms-1981-2009/
[Editor’s Note: The MLA citation style requires double spacing within entries.]
Turabian (8th ed.):
ProCon.org. "UPDATED: Statistical Comparison of US Presidential Terms, 1981-2009." ProCon.org. Last modified on February 4, 2011. Accessed April 13, 2021. https://www.procon.org/updated-statistical-comparison-of-us-presidential-terms-1981-2009/