What encourages gang behavior? Tamara L. Roleff, book editor - Detroit Greenhaven Press 2002 - 91 p. : ill. ; 24 cm. Includes bibliographical references (p. 85-88) and index ISBN: 9780737708103 Subjects--Topical Terms: Gang members - PsychologyGangs Dewey Class. No.: 364.1066019 ROL