TY  - GEN
AU  - Bless, Ruud
TI  - Handbook for surveys on drug use among the general population : final report [PDF]
PY  - 2002///
CY  - Lisboa
PB  - EMCDDA
KW  - bevolkingsonderzoek
KW  - drugs
KW  - enquêtes
KW  - epidemiologie
KW  - Europa
KW  - Europese Unie
KW  - onderzoeksmethoden
KW  - vragenlijsten
UR  - http://www.google.com/search?q=Handbook-for-surveys-on-drug-use-among-the-general-population final-report
ER  -