APA (7th ed.) Citation

Pan American Health Organization. (1990). Drug abuse. Pan American Health Organization.

Chicago Style (17th ed.) Citation

Pan American Health Organization. Drug Abuse. Washington, D.C: Pan American Health Organization, 1990.

MLA (9th ed.) Citation

Pan American Health Organization. Drug Abuse. Pan American Health Organization, 1990.

Warning: These citations may not always be 100% accurate.