APA (7th ed.) Citation

Hafen, B. Q., & Frandsen, K. J. (1980). Marijuana: Facts, figures and information for the 1980's. Hazelden.

Chicago Style (17th ed.) Citation

Hafen, Brent Q., and Kathryn J. Frandsen. Marijuana: Facts, Figures and Information for the 1980's. Center City, Mn: Hazelden, 1980.

MLA (8th ed.) Citation

Hafen, Brent Q., and Kathryn J. Frandsen. Marijuana: Facts, Figures and Information for the 1980's. Hazelden, 1980.