Bowden, Leonard W. Diffusion of the decision to irrigate : simulation of the spread of a new resource management practice in the Colorado northern high plains / by Leonard W. Bowden. - Chicago : Dept. of Geography, University of Chicago, 1965. - xxvii, 146 p. : ISBN: CSRD2416 Subjects--Topical Terms: Irrigation Dewey Class. No.: 333.913 / Di