000			00495nam a2200169Ia 4500
003			SGT
020			_a9788120338364
082			_a628 _bNAT
100			_aNathanson,Jerry,A
245			_aBasic environment technology
250			_a5th Ed.
260			_bPHI Learning Private Limited _aNew Delhi _c2011
300			_a531p.
650			_aENGINEERING AND ALLIED OPERATIONS
653			_aCIVIL ENGINEERING ,HYDRAULICS, WATER QUALITY, WATER POLLUTION ,AIR POLLUTION AND CONTROL
942			_2ddc _cBK _05
999			_c5213 _d5213