Duckworth, W. E. A guide to operational research / W. E. Duckworth, A. E. Gear, A. G. Lockett. - 3d ed. - London : New York : Chapman and Hall ; Wiley, 1977. - ix, 205 p. : ill. ; 25 cm. "A Halsted Press book." Includes bibliographies and indexes. ISBN: 0470991453 LCCN: 77004247 Subjects--Topical Terms: Operations researchYöneylem araştırması LC Class. No.: T57.6 / .D83 1977 Dewey Class. No.: 001.424 / DUC 1977