Browsing by Subject "Farm drainage"
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Item Agricultural Engineering News Letter, number 61(University of Minnesota, Agricultural Extension Division, 1937-04) University of Minnesota, Agricultural Extension Division; Roe, H.B.Item Agricultural Engineering News Letter, number 78(University of Minnesota, Agricultural Extension Division, 1938-08) University of Minnesota, Agricultural Extension Division; Neal, J.H.Item Agricultural Engineering News Letter, number 80(University of Minnesota, Agricultural Extension Division, 1938-11) University of Minnesota, Agricultural Extension Division; Roe, H.B.Item Agricultural Engineering News Letter, number 87(University of Minnesota, Agricultural Extension Division, 1939-06) University of Minnesota, Agricultural Extension Division; Miller, Dalton G.