Kapoor , V. K. Operations research : problems & solutions / V. K. Kapoor . - 4th Rev. ed. - New Delhi : Sultan chand & Sons, 2006. - xii , ( various pagings ) : ill. ; 22cm . ISBN: 8170146054 Subjects--Topical Terms: Operations research. Dewey Class. No.: 658.4034 K17o 2006