000 00299nam a2200109Ia 4500
008 220510s1972 xx 000 0 und d
041 _aeng
082 _a370.1
_bSAF
100 _aSafaya,Raghunath,
_9778293
245 _aEducational Theory and Practice
260 _aDelhi:
_bDhanpat Rai and sons,
_c1972
999 _c528503
_d528503