Hillier, Frederick S. Introduction to operations research / Frederick S. Hillier and Gerald J. Lieberman - 9th ed. - New York : McGraw-Hill, c2010. - xxiv, 1047 p. : ill. ; 27 cm. ISBN: 9780071267670 LCCN: Subjects--Topical Terms: Operations research LC Class. No.: T57.6 / .H53 2010