000 00312nam a2200133Ia 4500
100 _aVaidya, Narendera
365 _b14.5
942 _cBK
654 _a
245 _aThe impact science teaching
260 _aNew Delhi
_bOxford & IBH Publishing Company
_c1971
082 _a375.5
300 _bHb
_c24.3
_axx,326
999 _c392959
_d392959
041 _aeng