Henry, William R. Managerial economics : analysis and cases / William R. Henry, W. Warren Haynes. - 4th ed. - Dallas : Business Publications, 1978. - xvi, 708 p. : ill. ; 23 cm. Includes index. ISBN: 0256020795 Subjects--Topical Terms: Managerial economics. Dewey Class. No.: 658.155 / HEM 1978