Wilcox, Walter W. Economics of American agriculture / Walter William Wilcox and Willard Wesley Cochrane. - Englewood : Prentice-Hall, c 1955. - xiii, 594 p. : ill. ; 22 cm. Includes Index. 337 337 Subjects--Topical Terms: Agriculture--America. Dewey Class. No.: 338.1973 / W643e