000 00263nam a2200121Ia 4500
008 230321s9999 xx 000 0 und d
082 _bSHA
100 _aSharma, R.C
245 0 _aModern Science Teaching
260 _bDhanpat
_c2008
300 _a434
942 _cBK
999 _c2439
_d2439