Cita APA (7a ed.)

Berridge, V. (1999). European drug policies: The need for historical policy perspectives. Current and future drug policy studies in Europe, 69-87.

Cita Chicago Style (17a ed.)

Berridge, Virginia. "European Drug Policies: The Need for Historical Policy Perspectives." Current and Future Drug Policy Studies in Europe 1999: 69-87.

Cita MLA (9a ed.)

Berridge, Virginia. "European Drug Policies: The Need for Historical Policy Perspectives." Current and Future Drug Policy Studies in Europe, 1999, pp. 69-87.