TY  - GEN
AU  - Hughes, P.H.
AU  - Venulet, J.
AU  - Khant, U.
AU  - Mora, M. E. Medina
AU  - Navaratnam, V.
AU  - Poshyacinda, V.
AU  - Rootman, I.
AU  - Salan, R.
AU  - Wadud, K. A.
ED  - World Health Organization.
TI  - Core data for epidemiological studies of nonmedical drug use
T2  - WHO offset publications ; no. 56
SN  - 9241700564
PY  - 1980///
CY  - Geneva : 
PB  - World Health Organization
KW  - Substance abuse
KW  - Epidemiology
KW  - Substance-related disorders
KW  - Data collection
KW  - Methods
ER  -