RT Book T1 The use of cannabis: report of a WHO scientific group T2 Technical report series / World Health Organization JF Technical report series / World Health Organization LA English PP Geneva PB World Health Organization YR 1971 UL https://krimdok.uni-tuebingen.de/Record/1108266002 NO Literaturverz. S. 39 - 47 CN 613.8/3 K1 Konferenzschrift