Cita APA (7th ed.)

Dorn, N., Jepsen, J., & Savona, E. U. (1996). European drug policies and enforcement. Macmillan.

Cita Chicago (17th ed.)

Dorn, Nicholas, Jorgen Jepsen, i Ernesto Ugo Savona. European Drug Policies and Enforcement. Houndsmill, Basingstoke, Hampshire: Macmillan, 1996.

Cita MLA (9th ed.)

Dorn, Nicholas, et al. European Drug Policies and Enforcement. Macmillan, 1996.