"GUPTA PREM. KUMAR .,HIRA D . S .," OPERATIONS RESEARCH - 0 - NEW DELHI S.CHAND AND COMPANY LTD 1998 - NULL ISBN: 81-219-0281-9 Subjects--Topical Terms: "MANAGEMENT,OPERATIONS RESEARCH,LINEAR PROGRAMMING,DECISION THEORY" Dewey Class. No.: 658.4034 GUP/HIR.