National household survey on drug abuse : main findings 1993 - United States. Substance Abuse and Mental Health Services Administration. Office of Applied Studies (U.S. Dept. of Health and Human Services, Public Health Service, 1995)
"Developed for the Substance Abuse and Mental Health Services Administration, Office of Applied Studies (SAMHSA/OAS), by the National OpinionResearch Center (NORC) ... under contract no. 283-94-0002"–T.p. verso.