Worker drug use and workplace policies and programs :
results from the 1994 and 1997 National household survey on drug abuse /
[authors ... Zhiwei Zhang ... Lynn X. Huang ... and Angela M. Brittingham].

APA Citation

Zhang, Z., Brittingham, A., Huang, L. X., United States. Substance Abuse and Mental Health Services Administration. Office of Applied Studies., United States. Department of Health and Human Services., National Opinion Research Center. (1999). Worker drug use and workplace policies and programs: results from the 1994 and 1997 National household survey on drug abuse. Rockville, MD: Dept. of Health and Human Services, Substance Abuse and Mental Health Services Administration.

MLA Citation

National Opinion Research Center, et al.. Worker Drug Use And Workplace Policies And Programs: Results From the 1994 And 1997 National Household Survey On Drug Abuse. Rockville, MD: Dept. of Health and Human Services, Substance Abuse and Mental Health Services Administration, 1999.