00883nam a2200217Ia 4500 82497 BIBL 20160527203144.0 711029r19511951nyua b 00010 eng Powers, Edwin. 153109 Local An experiment in the prevention of delinquency: the Cambridge-Somerville Youth Study by Edwin Powers and Helen Witmer. With a foreword by Gordon W. Allport. New York Columbia University Press 1951. xxxiv, 649 p. illus. Reprint of the 1951 ed. Bibliography: p. [638] Cambridge-Somerville Youth Study. 68327 Local Juvenile delinquency Cambridge, Mass. 118776 Local Juvenile delinquency Somerville, Mass. 118776 Local Witmer, Helen Leland joint author. 189943 Local Prevention of delinquency. 66706 66706 0 0 0 364_360000000000000_P888E 0 evl 359003 10 10 1 2016-05-27 132128 0 364.36 P888e 80000000416555 2016-05-27 00:00:00 r:82497 z:NCC:D 6