Cheema ,Col.D.S. Operations research [[Book] /] Col.D.S.Cheema. - 2nd.ed. - New Delhi : Laxmi Publications (p) ltd, 2006. - 923 p : ill ; 26cm. All age. ISBN: 8170087554 Subjects--Topical Terms: Operations research. Dewey Class. No.: 658.4034 National Library of Medicine Call No.: 358.4034 / CO