00349nam a2200169Ia 4500008004100000082001100041082000800052245003600060250001200096260002100108260000900129300000900138365000600147365000600153365000600159650001400165181031s9999    xx            000 0 und d  a333.72  bCON  aConserving our Water Resources.  a2nd ed.  bNehru Foundation  c1994  a60p.  b0  d0  e0  aEconomics