000 00331nam a2200145Ia 4500
020 _a0199147329
082 _b1673
_a540
100 _a"Bethell George"
245 0 _aChemistry 1
260 _bOxford Publisher
_aPakistan
_c2001
300 _a236
944 _cTR
999 _c698712
_d698712