RT Book T1 Public schools versus delinquent youth A1 Vanden Bergh, Leonard John LA English PP Los Angeles PB Clark YR 1929 UL https://krimdok.uni-tuebingen.de/Record/1486552846 CN HV9069 K1 Juvenile Delinquency K1 Heredity K1 Education K1 Moral Education K1 USA : Jugendkriminalität : Privatschule