000 00266nam a2200109Ia 4500
008 220201s1990 xx 000 0 eng d
082 _a540
_bSEH
100 _aSehgal, JM etc.
245 0 _aModern chemistry for class xi
260 _bR.Chand & Co
_c1990
942 _2ddc
999 _c84221
_d84221