00642nam a22002297a 4500001001000000003000500010005001700015008004100032010001000073011001000083035001000093040000900103082001600112100001800128245005400146260006400200300001000264490004700274650001800321700002600339830004700365000012443CHAP20220329133836.0971013s1979            r     00010     d  a11658  a12630  a15826  cCHAP  a657.52bP4400aPeri, Gideon. 0aEvaluation and improvement of irrigation systems.  aFort Collins, Colorado :bColorado State University,c1979.  a80 h.  aWater management. Techinical reportv; 49A14aIrrigación.0 aSkogerboe, Gaylord V.0 aWater management. Techinical reportv; 49A