Preface to social economics : essays on economic theory and social problems / John Maurice Clark. Clark, John Maurice. Abramovitz, Moses. Ginzberg, Eli. Economics. Social problems. HB171 .C595 330.1 CLP Bibliography: p. 434. New York : Farrar & Rinehart, c1936. c1936. 1936 Text xxi, 435 p. : eng