000 00315nam a2200109Ia 4500
008 220510s1974 xx 000 0 und d
041 _aeng
082 _a370.15
_bSKI
100 _aSkinnner,Charles E,
_9778075
245 _aEducational Psychology
260 _aNew Delhi:
_bPrentice hall of India Private Limited,
_c1974
999 _c528285
_d528285