RT Book T1 A Guttman facet analysis of attitude-behaviors toward drug users by heroin addicts and mental health therapists A1 Nicholson, William Noel LA English PP Ann Arbor, Mich. PB Univ. Microfilms YR 1974 UL https://krimdok.uni-tuebingen.de/Record/1122658222 K1 Hochschulschrift