Hoffmann, J. P., Brittingham, A., & Larison, C. (1996). Drug use among U.S. workers: Prevalence and trends by occupation and industry categories. Substance Abuse and Mental Health Services Administration, Office of Applied Studies, U.S. Dept. of Health and Human Services, Public Health Service.
Chicago Style (17th ed.) CitationHoffmann, John P., Angela Brittingham, and Cindy Larison. Drug Use Among U.S. Workers: Prevalence and Trends by Occupation and Industry Categories. Rockville, MD: Substance Abuse and Mental Health Services Administration, Office of Applied Studies, U.S. Dept. of Health and Human Services, Public Health Service, 1996.
MLA (9th ed.) CitationHoffmann, John P., et al. Drug Use Among U.S. Workers: Prevalence and Trends by Occupation and Industry Categories. Substance Abuse and Mental Health Services Administration, Office of Applied Studies, U.S. Dept. of Health and Human Services, Public Health Service, 1996.