APA (7th ed.) Citation

Albrecht, H., & Kalmthout, A. M. v. (1989). Introduction. Drug policies in Western Europe, 1-6.

Chicago Style (17th ed.) Citation

Albrecht, Hans-Jörg, and Anton M. van Kalmthout. "Introduction." Drug Policies in Western Europe 1989: 1-6.

MLA (9th ed.) Citation

Albrecht, Hans-Jörg, and Anton M. van Kalmthout. "Introduction." Drug Policies in Western Europe, 1989, pp. 1-6.