TY  - BOOK
AU  - Powers,Edwin
AU  - Witmer,Helen Leland
TI  - An experiment in the prevention of delinquency : : the Cambridge-So merville Youth Study / 
U1  - L 364.3 POW 
PY  - 1951///
CY  - New York : 
PB  - Columbia University Press, 
KW  - Cambridge-Somerville Youth Study
KW  - Juvenile delinquency
N1  -  Bibliography: p. [638]
ER  -