Hagan, Robert M.
Irrigation of Agricultural Lands / Textual Documents Robert M Hagan and Howard R Haise et al. - Wisconsin : American Society of Agronomy Publishers , 1967. - xxxi, 1180p ; .
Agriculture Soil conservation
630 / HAG
Irrigation of Agricultural Lands / Textual Documents Robert M Hagan and Howard R Haise et al. - Wisconsin : American Society of Agronomy Publishers , 1967. - xxxi, 1180p ; .
Agriculture Soil conservation
630 / HAG