000 00451nam a2200157Ia 4500
008 170901s2012 xx 000 0 und d
082 _a620.8
_bR18T
100 _aRao, P. Venugopala
245 0 _aTextbook of Environmental Engineering
260 _aNew Delhi
_bPHI Learning Pvt. Ltd.
_c2012
300 _a268
650 _aEngineering and allied operations
650 _aTechnology (Applied sciences)
653 _aBiotechnology
942 _2ddc
_cBK
999 _c11432
_d11432