'You wouldn�t know the old farm now', Harpers
Tags: 1940s; 1946; 1946-10-1; Agricultural innovations; Croy, Homer; Engineering; Farm mechanization; Mechanical Engineering; United States
'The man with a tractor', Harpers
Tags: 1930s; 1938; 1938-11-1; Engineering; Farm mechanization; Farmers; Great Plains; Mayo, Morrow; Mechanical Engineering; Sowing; Wheat
'The wheat farmer�s dilemma', Harpers
Tags: 1930s; 1931; 1931-7-1; Biology; Carlson, Avis D.; Economic aspects; Economic conditions; Farm mechanization; Plant Sciences; Surplus agricultural commodities; United States; Wheat farmers; Wheat trade
atom, dcmes-xml, json, omeka-xml, rss2
