00483     2200181   4500001002100000035002000021245008600041100002300127260004900150300001700199084001100216082001100227650001200238650001200250863002300262990000800285990000800293INLIS000000000000487  a0010-1020000289  aEvaluating irrigation system performance with measures of irrigation efficiencies  aby Leslie E. Small  aLondonbOverseas Development Institutec1992  c14p.; 21 cmm  a631.67  a631.67  aIRIGASI  aSISTEM.  aNETWORK PAPER 22.   a496  a496