APA (7th ed.) Citation

Kaplan, J. (1970). Marijuana, the new prohibition (2. printing.). World Publ. Co.

Chicago Style (17th ed.) Citation

Kaplan, John. Marijuana, the New Prohibition. 2. printing. New York u.a: World Publ. Co, 1970.

MLA (9th ed.) Citation

Kaplan, John. Marijuana, the New Prohibition. 2. printing. World Publ. Co, 1970.

Warning: These citations may not always be 100% accurate.