00353nam a2200109Ia 4500008004100000082002400041100002800065245005900093260004600152300001500198700003000213260206b        |||||||| |||| 00| 0 eng d  a519.702433bP523.MP  aPfaffenberger, Roger C.  aMathematical programming for economics and businessb/  aAmes:bIowa State University Press,c1976  axii, 462p.  aWalker, David A.eauthor.