RT Book T1 Delinquency and opportunity: a theory of delinquent gangs A1 Cloward, Richard A. 1926- A2 Ohlin, Lloyd E. 1918-2008 LA English PP New York PB Free Press YR 1969 ED 5.print. UL https://krimdok.uni-tuebingen.de/Record/1073301206 K1 Kriminalität