Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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