APA
Campbell D., Graham M., . (1988). Drugs and alcohol in the workplace. New York, N.Y: Facts on File Publications.
Chicago
Campbell Drusilla, Graham Marilyn, . 1988. Drugs and alcohol in the workplace. New York, N.Y: Facts on File Publications.
Harvard
Campbell D., Graham M., . (1988). Drugs and alcohol in the workplace. New York, N.Y: Facts on File Publications.
MLA
Campbell Drusilla, Graham Marilyn, . Drugs and alcohol in the workplace. New York, N.Y: Facts on File Publications. 1988.