The effect of weather and technology on corn yields in the Corn Belt, 1929-62 - Shaw, Lawrence H. (Lawrence Hugh), 1940-; Durost, Donald Douglas, 1924- (Washington : U.S. Dept. of Agriculture, Economic Research Service, 1965)
Cover title.
Literature cited: p. 21-22.
Keywords: Corn -- Middle West; Crops and climate -- Middle West