Hiller, Frederick s. Introduction to operations research : concepts and cases / Frederick S. Hiller, Gerald J. Lieberman - 8th, 9th ed. - New Delhi : McGraw-Hill 2010. - 1061 pages ; 23 cm. ISBN: 978-0-07-060092-8 978-9354601200 Subjects--Topical Terms: Operations research. Dewey Class. No.: 658.4034 / HIL.I