RT Book T1 The use and abuse of psychoactive drugs among youth populations in the United States, 1964 to 1974: a descriptive study A1 Ekanger, Dennis L. LA English PP Ann Arbor, Mich. PB Xerox Univ. Microfilms YR 1975 UL https://krimdok.uni-tuebingen.de/Record/1094469157 K1 Hochschulschrift