Cita APA (7a ed.)

Westermeyer, J. (1989). Nontreatment factors affecting treatment outcome in substance abuse. American journal of drug and alcohol abuse, 15(1), 13-30.

Cita Chicago Style (17a ed.)

Westermeyer, Joseph. "Nontreatment Factors Affecting Treatment Outcome in Substance Abuse." American Journal of Drug and Alcohol Abuse 15, no. 1 (1989): 13-30.

Cita MLA (9a ed.)

Westermeyer, Joseph. "Nontreatment Factors Affecting Treatment Outcome in Substance Abuse." American Journal of Drug and Alcohol Abuse, vol. 15, no. 1, 1989, pp. 13-30.