Farm planing for maximum profits on the cresco-clyde soils in Northeast iowa,
Heady, E.O., Loftsgard, L.D.
Farm planing for maximum profits on the cresco-clyde soils in Northeast iowa, And comparison of farm and nonfarmincomes - Ames 1957 - 58-88 p. - Farm Iowa Agricultural Experiment Station. Research Bulletin No. 450 .
Farm planing for maximum profits on the cresco-clyde soils in Northeast iowa, And comparison of farm and nonfarmincomes - Ames 1957 - 58-88 p. - Farm Iowa Agricultural Experiment Station. Research Bulletin No. 450 .