Cita APA (7a ed.)

RAY, O., & KSIR, C. (1999). Drugs, society, and human behavior.-- ed.8. WBC/McGraw-Hill.

Cita Chicago Style (17a ed.)

RAY, Oakley, y Charles KSIR. Drugs, Society, and Human Behavior.-- Ed.8. Boston: WBC/McGraw-Hill, 1999.

Cita MLA (9a ed.)

RAY, Oakley, y Charles KSIR. Drugs, Society, and Human Behavior.-- Ed.8. WBC/McGraw-Hill, 1999.