TY - BOOK ID - 128101079 TI - An experiment in the prevention of delinquency : the Cambridge-Somerville Youth Study, AU - Powers, Edwin AU - Witmer, Helen Leland PY - 1951 PB - New York : Columbia University Press, DB - UniCat KW - Juvenile delinquency. KW - Cambridge-Somerville Youth Study. UR - https://www.unicat.be/uniCat?func=search&query=sysid:128101079 AB - ER -