000 00251nam a2200109Ia 4500
020 _a0070532443
100 _aSAWYAR.CN
245 _aCHEMISTRY FOR ENVIRONMENTAL ENGINEERING AND SCIENCE
250 _aNIL
260 _c2006
_bTATA MCGRAWHILL
490 _aP609
999 _c643
_d643