Ray, O. (1999). Drugs, society, and human behavior. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Ray, Oakley. Drugs, Society, and Human Behavior. McGraw-Hill, 1999.
Lua MLA (8ú heag.)Ray, Oakley. Drugs, Society, and Human Behavior. McGraw-Hill, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.