EUROPEAN MONITORING CENTRE FOR DRUGS AND DRUG ADDICTION
An overview of cannabis potency in Europe / prepared by Leslie A. King; Chloé Carpentier, Paul Griffiths . - Luxembourg : Office for Official Publications of the European Communities, 2004 . - 71 p. : il.; 21 cm . - EMCDDA Insights . - ISBN: 9291681849
COMBATE À DROGA / TRÁFICO DE CANNABIS / CANNABIS / EMCDDA / OEDT / EUROPA /