Ecker, Joseph G. Introduction to operations research / Joseph G. Ecker, Michael Kupferschmid. - New York : Wiley, c1988. - xvii, 509 p. : ill. ; 26 cm. Includes bibliographies and index. ISBN: 0471884456 Subjects--Topical Terms: Operations research. Dewey Class. No.: 658.4034 / ECI 1988