Cita APA (7a ed.)

Kallen, S. A. (2006). Legalizing drugs. Greenhaven Press.

Cita Chicago Style (17a ed.)

Kallen, Stuart A. Legalizing Drugs. Farmington Hills, Mich. [u.a.]: Greenhaven Press, 2006.

Cita MLA (8a ed.)

Kallen, Stuart A. Legalizing Drugs. Greenhaven Press, 2006.