Cita APA (7a ed.)

Albrecht, H., & Kalmthout, A. M. v. (1989). European perspectives on drug policies. Drug policies in Western Europe, 425-473.

Cita Chicago Style (17a ed.)

Albrecht, Hans-Jörg, y Anton M. van Kalmthout. "European Perspectives on Drug Policies." Drug Policies in Western Europe 1989: 425-473.

Cita MLA (9a ed.)

Albrecht, Hans-Jörg, y Anton M. van Kalmthout. "European Perspectives on Drug Policies." Drug Policies in Western Europe, 1989, pp. 425-473.