Cita APA (7a ed.)

Harms, E. (1971). Drug addiction in youth. Pergamon Pr.

Cita Chicago Style (17a ed.)

Harms, Ernest. Drug Addiction in Youth. Oxford: Pergamon Pr, 1971.

Cita MLA (9a ed.)

Harms, Ernest. Drug Addiction in Youth. Pergamon Pr, 1971.