APA (7th ed.):
ProCon.org. (2019, September 24). 1971 – UK Introduces Drug Classification System. ProCon.org. https://medicalmarijuana.procon.org/timeline-events/1971-uk-introduces-drug-classification-system
[Editor's Note: The APA citation style requires double spacing within entries.]
Chicago (17th ed.):
ProCon.org, "1971 – UK Introduces Drug Classification System," ProCon.org. last modified September 24, 2019. https://medicalmarijuana.procon.org/timeline-events/1971-uk-introduces-drug-classification-system/.
MLA (9th ed.):
ProCon.org, "1971 – UK Introduces Drug Classification System." ProCon.org. 24 Sep. 2019, medicalmarijuana.procon.org/timeline-events/1971-uk-introduces-drug-classification-system
[Editor’s Note: The MLA citation style requires double spacing within entries.]
Turabian (9th ed.):
ProCon.org. "1971 – UK Introduces Drug Classification System." ProCon.org. Last modified on September 24, 2019. Accessed June 1, 2023. https://medicalmarijuana.procon.org/timeline-events/1971-uk-introduces-drug-classification-system/