Cita APA (7a ed.)

Johnston, L. D. (1987). Psychotherapeutic, licit and illicit use of drug among adolescents: An epidemiological perspective. Journal of adolescent health, 8(1), 36-51.

Cita Chicago Style (17a ed.)

Johnston, Lloyd D. "Psychotherapeutic, Licit and Illicit Use of Drug Among Adolescents: An Epidemiological Perspective." Journal of Adolescent Health 8, no. 1 (1987): 36-51.

Cita MLA (9a ed.)

Johnston, Lloyd D. "Psychotherapeutic, Licit and Illicit Use of Drug Among Adolescents: An Epidemiological Perspective." Journal of Adolescent Health, vol. 8, no. 1, 1987, pp. 36-51.