000 00272nam a2200121Ia 4500
100 _aSharma, R. C.
942 _cBK
245 _aModern science teaching
260 _aNew Delhi
_bDhanapat Rai & Sons
_c1978
082 _a375.5
_bSar
300 _ax,400
546 _aEnglish
999 _c339695
_d339695
041 _aeng