Dyfyniad APA

Campbell, D., & Graham, M. (1988). Drugs and alcohol in the workplace: A guide for managers. Facts on File Publications.

Dyfyniad Arddull Chicago

Campbell, Drusilla, and Marilyn Graham. Drugs and Alcohol in the Workplace: A Guide for Managers. New York, N.Y.: Facts on File Publications, 1988.

Dyfyniad MLA

Campbell, Drusilla, and Marilyn Graham. Drugs and Alcohol in the Workplace: A Guide for Managers. Facts on File Publications, 1988.

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