Venn, J. A. The foundations of agricultural economics : together with an economic history of British agriculture during and after the Great War / J. A. Venn. - Cambridge : Cambridge University Press, 1933. - xx, 600 p. : ill. ; 24 cm. Includes index. 47 47 Subjects--Topical Terms: Agriculture--Great Britain. Dewey Class. No.: 338.1 / V561f