Harcourt, G. C. 1931- Economic activity / G. C. Harcourt, P. H. Karmel and R. H. Wallace. - Cambridge : Cambridge University Press, 1967. - x, 324 p. : ill. ; 22 cm. Bibliography: p. 318-320. and index Subjects--Topical Terms: Macoeconomics. Dewey Class. No.: 338.5 / HAE 1967