RT Book T1 The evolution of a recreational drug: an ethnographic study of PCP in an adolescent drug using network A1 Wiebel, W. W. LA English PP Ann Arbor, Mich. PB Univ. Microfilms Internat. YR 1984 UL https://krimdok.uni-tuebingen.de/Record/1089968817 K1 Hochschulschrift