Harcourt, G. C. Economic activity / by G. C. Harcourt, P. H. Karmel and R. H. Wallace - Cambridge : The University Press, 1967 - x, 323 p. : ill. ; 22 cm. Includes index ISBN: PND 17.60 Subjects--Topical Terms: MoneyEmployment (economic theory)Economics Dewey Class. No.: 330.1