Cita APA (7a ed.)

Observatorio Europeo de las Drogas y las Toxicomanías. (2009). Risk assessment of new psychoactive substances: Operating guidelines. Publications Office of the European Union.

Cita Chicago Style (17a ed.)

Observatorio Europeo de las Drogas y las Toxicomanías. Risk Assessment of New Psychoactive Substances: Operating Guidelines. Luxembourg: Publications Office of the European Union, 2009.

Cita MLA (9a ed.)

Observatorio Europeo de las Drogas y las Toxicomanías. Risk Assessment of New Psychoactive Substances: Operating Guidelines. Publications Office of the European Union, 2009.