00324nam a2200109 a 450000500170000008200220001710000210003924500810006025000120014126000400015330000210019320251203090735.0  a658.4034,bD, wag  aWagner, Harvey M  aPrinciples of operations research: with applications to managerial-decisions  a2nd ed.  aDelhibPrentice Hall of Indiac1985  axii, 1039p, 22cm