Dyfyniad APA

Ksir, C., Ray, O. S., & Hart, C. L. (2008). Drugs, society, and human behavior (12th ed.). Boston: McGraw-Hill.

Dyfyniad Arddull Chicago

Ksir, Charles., Oakley Stern Ray, và Carl L. Hart. Drugs, Society, and Human Behavior. 12th ed. Boston: McGraw-Hill, 2008.

Dyfyniad MLA

Ksir, Charles., Oakley Stern Ray, và Carl L. Hart. Drugs, Society, and Human Behavior. 12th ed. Boston: McGraw-Hill, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.