00469nam a2200157Ia 4500008004100000020001500041082001800056100001900074245004200093260005100135300000800186650003800194650003400232653001600266653002900282170901s2004    xx            000 0 und d  a8176485535  a628.119bK97F  aGopal, Krishna 0aFundamentals of Water and Waste Water  aNew DelhibA.P.H. Publishing Corporationc2004  a154  aEngineering and allied operations  aTechnology (Applied sciences)  aWaste Water  aWater supply engineering