RT Book T1 An exploratory study of heroin addiction among white, middle-class male addicts receiving methadone maintenance treatment A1 Platt, Joshua P. LA English PP Ann Arbor, Mich. PB Univ. Microfilms International YR 1985 UL https://krimdok.uni-tuebingen.de/Record/1086433882 K1 Hochschulschrift