TY  - GEN
ED  - United Nations Office on Drugs and Crime
TI  - Guidelines for yield assessment of opium gum and coca leaf from brief field visits [PDF]
SN  - 9211481422
PY  - 2006///
CY  - New York
PB  - United Nations
KW  - cocaïne
KW  - drugs
KW  - heroïne
KW  - opsporing
KW  - richtlijnen
KW  - teelt
KW  - VN
UR  - http://www.google.com/search?q=yield-assessment-of-opiium-gum-and-coca-lief
ER  -