Review of general population surveys of drug abuse /
Johnston, Lloyd D.
Review of general population surveys of drug abuse / Lloyd D. Johnston. - Geneva : World Health Organization, 1980. - 57 p. - WHO offset publication ; no. 52 .
eng fre.
9241700521
Substance abuse.
Epidemiologic methods.
Health surveys.
WM 270
Review of general population surveys of drug abuse / Lloyd D. Johnston. - Geneva : World Health Organization, 1980. - 57 p. - WHO offset publication ; no. 52 .
eng fre.
9241700521
Substance abuse.
Epidemiologic methods.
Health surveys.
WM 270