Cita APA (7a ed.)

Europäische Kommission. (2007). Guidelines for the evaluation of treatment in the field of problem drug use: A manual for researchers and professionals. EMCDDA manuals.

Cita Chicago Style (17a ed.)

Europäische Kommission. "Guidelines for the Evaluation of Treatment in the Field of Problem Drug Use: A Manual for Researchers and Professionals." EMCDDA Manuals 2007.

Cita MLA (9a ed.)

Europäische Kommission. "Guidelines for the Evaluation of Treatment in the Field of Problem Drug Use: A Manual for Researchers and Professionals." EMCDDA Manuals, 2007.