00558     2200193   4500001002100000035002000021245009600041100002700137110004300164260004900207300001600256084001500272082001500287650001200302650001400314650002000328990000800348990000800356INLIS000000000000488  a0010-1020000290  aUsers, operator and hydraulic structures: A Case of irrigation management in Western Mexico  aby Pieter van den Zaag  aOverseas Development Institute, London  aLondonbOverseas Development Institutec1992  c14p.; 21 cm  a631.67(72)  a631.67(72)  aIRIGASI  aMANAGEMEN  aWESTERN MEXICO.  a497  a497