Colberg, Marshall R., 1913-2000. Business economics; principles and cases / [by] Marshall R. Colberg, Dascomb R. Forbush [and] Gilbert R. Whitaker, Jr. - 4th ed. - Homewood, Ill., Irwin, 1970. - xi, 601 p. illus. 24 cm. 1951 ed. by R. M. Alt and W. C. Bradford. Bibliographical footnotes. Subjects--Personal Names: Subjects--Topical Terms: Managerial economics. Dewey Class. No.: 338.7 COL