Hansen, Vaughn E. Irrigation principles and practices / Vaughn E. Hansen, Orson W. Israelsen and Glen E. Stringham. - 4th ed. - New York : Wiley, 1979. - 417 p. : ill. ; 24 cm. Third ed. by O. W. Israelsen and V. E. Hansen. Includes bibliographies and index. ISBN: 0471084492 Subjects--Topical Terms: Irrigation. Dewey Class. No.: 631.537 / HAI