Research on the Differential Treatment of Juvenile Delinquents - Third Report - Okusawa, Yoshio; Osanaj, Koichiro; Sato, Koichiro; Sato, Tsuneko; Okabe, Shunroku; Hagiwaba, Yasuo; Tomita, Michio; Sawada, Naoko (Bulletin of the Criminological Research Department / Research and Training Institute, 1979)