00349nam a2200121Ia 4500008004100000020000500041082002000046100002000066245005800086260007000144300000800214650000500222140316s9999    xx            000 0 und d  a  a631.587bASH/IR  aAshok K Mithra,  aIrrigation management and pricing of irrigation water  aMumbaibNational bank for agriculture and rural developmentc1997  a103  a