RT Book T1 What encourages gang behavior? T2 At issue A2 Roleff, Tamara L. 1959- LA English PP San Diego, Calif. PB Greenhaven Press YR 2002 UL https://krimdok.uni-tuebingen.de/Record/1623784972 NO Includes bibliographical references and index CN HV6437.W48 2002 SN 0-7377-0810-7 SN 0-7377-0811-5 K1 Gangs K1 Gang members : Psychology