000 00250nam a2200121Ia 4500
365 _b6
942 _cBK
654 _a
245 _aTypical problems Chemistry
_bStd XII
260 _aMumbai
_c1976
082 _a540.76
300 _bPb
_c22cm
_a(4), 146
999 _c415336
_d415336
041 _aeng