Leath, Mack N. U.S. Corn industry / Mack N. Leath, Lynn H. Meyer, Lowell D. Hill ; U.S. Department of agriculture. Economic research service. - Washington : U.S. Department of Agriculture, 1982. - 119 p. : ill. ; 28 cm. - Agricultural Economic Report Number 479 . Includes references and appendix Subjects--Topical Terms: Corn--Production--USA