Cita APA (7th ed.)

Cull, J. G., & Hardy, R. E. (1974). Types of drug abusers and their abuses. Thomas.

Cita Chicago (17th ed.)

Cull, John G., i Richard E. Hardy. Types of Drug Abusers and Their Abuses. Springfield, Ill: Thomas, 1974.

Cita MLA (9th ed.)

Cull, John G., i Richard E. Hardy. Types of Drug Abusers and Their Abuses. Thomas, 1974.