00347nam a2200121Ia 4500008004100000020001800041040003800059100001900097245004400116260003400160300001600194653001500210211217s9999    xx            000 0 und d  a0 12 535601 3  cJayakar Knowledge Resource Centre  aHersen, Michel 0aProgress in behavioyur modification v-1  bACDEMIC PRESSaNEW YORKc1975  aXI, 351p p.  aPSYCHOLOGY