00342nam a2200109Ia 4500008004100000082002000041100001700061245006400078260004100142300001000183650003900193211119s9999||||xx |||||||||||||| ||und||  a658.4034bRAV-O  aRavindran, A 0aOperations Research: Principles and Practice:Second Edition  bRonald Press CompanyaNew Yorkc1987  a637p.  aManagementEconomicsxGeneral Stack