RT Book T1 Reference groups: exploration into conformity and deviation of adolescents A1 Sherif, Muzafer 1906-1988 A2 Sherif, Carolyn W. 1922-1988 LA English PP New York u.a. PB Harper & Row YR 1964 UL https://krimdok.uni-tuebingen.de/Record/1079930582 CN 301.431 K1 Bezugsgruppe