000 00272nam a22001097a 4500
020 _a9789332549760
082 _a628
100 _aMASTERS GILBERT M;
245 _aINTRODUCTION TO ENVIRONMENTAL ENGINEERING AND SCIENCE
260 _aNEW DELHI
_bPEARSON
_c2013
942 _cBK
999 _c8669
_d8669