Dyfyniad APA

Wilson, H. T. (1998). Drugs, society, and behavior 98/99. Guilford, Conn.: Dushkin/McGraw-Hill.

Dyfyniad Arddull Chicago

Wilson, Hugh T. Drugs, Society, and Behavior 98/99. Guilford, Conn.: Dushkin/McGraw-Hill, 1998.

Dyfyniad MLA

Wilson, Hugh T. Drugs, Society, and Behavior 98/99. Guilford, Conn.: Dushkin/McGraw-Hill, 1998.

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