000 00414nam a2200169Ia 4500
003 BML
020 _a9788120336919
082 _a628
_bMAS
100 _aMasters, Gilbert M.
245 _aIntroduction to environmental engineering and science
250 _a3rd
260 _bPHI Learning
_aNew Delhi
_c2008
300 _a708p.
650 _aEnvironmental engineering
700 _aEla, Wendell P.
942 _2ddc
_cBK
999 _c217
_d217