APA-Zitierstil (7. Ausg.)

Díez Ripollés, J. L. (1989). Principles of a new drug policy in Western Europe from a Spanish point of view. Drug policies in Western Europe, 321-341.

Chicago-Zitierstil (17. Ausg.)

Díez Ripollés, José Luis. "Principles of a New Drug Policy in Western Europe from a Spanish Point of View." Drug Policies in Western Europe 1989: 321-341.

MLA-Zitierstil (9. Ausg.)

Díez Ripollés, José Luis. "Principles of a New Drug Policy in Western Europe from a Spanish Point of View." Drug Policies in Western Europe, 1989, pp. 321-341.