RT Book T1 Passivity, assertion, and aggression: assertive training with two types of institutionalized criminal offenders A1 Gregg, Robert E. LA English PP Ann Arbor, Mich. PB Xerox Univ. Microfilms YR 1977 UL https://krimdok.uni-tuebingen.de/Record/1093754141 K1 Hochschulschrift