00446nam a2200145Ia 4500008004100000082001400041100002500055245004600080260005000126300000800176650003800184650003400222653001500256653002900271170901s1979    xx            000 0 und d  a627bG96W  aGupta, Bhagirath Lal 0aWater Resources Engineering and Hydrology  aDelhibStandard Publishers Distributorsc1979  a640  aEngineering and allied operations  aTechnology (Applied sciences)  aHydraulics  aWater supply engineering