RT Book
T1 An experiment in the prevention of delinquency: the Cambridge-Somerville Youth-study
A1 Powers, Edwin
A2 Witmer, Helen Leland
LA English
PP New York
PB Columbia Univ. Pr.
YR 1951
UL https://krimdok.uni-tuebingen.de/Record/1080172637
CN 364.36
K1 Verlaufsstudien