000 00265nam a2200121Ia 4500
020 _a007011207X
082 _a546
_bRAY
100 _aRaymond
245 _aEssential chemistry
_cRaymond chang
260 _aNew York
_bMc Graw Hill
_c1996
300 _a717
942 _cBK
999 _c4541
_d4541