Cita APA (7a ed.)

Christie, N. (1989). Reflections on drugs. Drug policies in Western Europe, 41-47.

Cita Chicago Style (17a ed.)

Christie, Nils. "Reflections on Drugs." Drug Policies in Western Europe 1989: 41-47.

Cita MLA (9a ed.)

Christie, Nils. "Reflections on Drugs." Drug Policies in Western Europe, 1989, pp. 41-47.