RT Book T1 A sociological analysis and summative evaluation of the education and enforcement programs to combat crime on the mass transit systems in the Detroit metropolitan area A1 Watkins, Carl LA English PP Ann Arbor, Mich. PB Univ. Microfilms Internat. YR 1985 UL https://krimdok.uni-tuebingen.de/Record/1091067090 K1 Hochschulschrift