00457nam a2200157Ia 4500008004100000020001800041082001400059100002000073245003200093260004400125300000800169650003800177650003400215653002900249700002100278170901s2002 xx 000 0 und d a9788120321519 a627bW94W aWurbs, Ralph. A 0aWater Resources Engineering aNew DelhibPHI Learning Pvt. Ltd.c2002 a828 aEngineering and allied operations aTechnology (Applied sciences) aWater supply engineering aJames, Wesley. P