Cita APA (7th ed.)

Schlaadt, R. G., & Shannon, P. T. (1994). Drugs: Use, misuse, and abuse (4th ed.). Prentice Hall.

Cita Chicago (17th ed.)

Schlaadt, Richard G., i Peter T. Shannon. Drugs: Use, Misuse, and Abuse. 4th ed. Englewood Cliffs, NJ: Prentice Hall, 1994.

Cita MLA (9th ed.)

Schlaadt, Richard G., i Peter T. Shannon. Drugs: Use, Misuse, and Abuse. 4th ed. Prentice Hall, 1994.