Hobson, J. A. 1858-1940. The Science of wealth / by J. A. Hobson; rev. by R. F. Harrod. - 4th ed. - London : Oxford University Press, 1950. - xiv, 214 p. : ill. ; 18 cm. Include index Subjects--Topical Terms: Economics. Dewey Class. No.: 330.16 / HOS 1950