United States. Department of Health and Human Services. Substance Abuse and Mental Health Services Administration & Research Triangle Institute. (2000). National household survey on drug abuse: Main findings 1998. Department of Health and Human Services, Substance Abuse and Mental Health Services Administration.
Chicago (17e ed.) BronvermeldingUnited States. Department of Health and Human Services. Substance Abuse and Mental Health Services Administration en Research Triangle Institute. National Household Survey on Drug Abuse: Main Findings 1998. Rockville, Md: Department of Health and Human Services, Substance Abuse and Mental Health Services Administration, 2000.
MLA (9e ed.) BronvermeldingUnited States. Department of Health and Human Services. Substance Abuse and Mental Health Services Administration en Research Triangle Institute. National Household Survey on Drug Abuse: Main Findings 1998. Department of Health and Human Services, Substance Abuse and Mental Health Services Administration, 2000.