Cita APA (7a ed.)

van Kammen, W., Loeber, R., & Maguin, E. (1993). Initiation of drug selling and its relationship with illicit drug use and serious delinquency in adolescent boys. Kluwer Academic Publishers.

Cita Chicago Style (17a ed.)

van Kammen, Welmoet, Rolf Loeber, y Eugene Maguin. Initiation of Drug Selling and Its Relationship with Illicit Drug Use and Serious Delinquency in Adolescent Boys. Kluwer Academic Publishers, 1993.

Cita MLA (9a ed.)

van Kammen, Welmoet, et al. Initiation of Drug Selling and Its Relationship with Illicit Drug Use and Serious Delinquency in Adolescent Boys. Kluwer Academic Publishers, 1993.