00597nam a2200157Ia 4500008004100000040001700041082002200058100002000080245005600100250000800156260003200164300002200196500006600218650013700284700001800421190327s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta631.7bE80I  aEtcheverry, B A 0aIrrigation practice and engineeringcB A Etcheverry  a2nd  aNew YorkbMcGraw-Hillc1933  av.1 (x, 256p):ill  aContents: v.1 Use of irrigation water and irrigation practice  aIrrigation; Irrigated farming; Irrigation engineering; Irrigations pumps; Irrigation canals and flames; Irrigation water-Return flow  aHardking, S T