00387nam a2200145 a 450000500170000010000260001710000270004324500400007026000240011030000100013496400160014499700120016099900170017295200520018920251203091244.0  aAckoff, Russell L.d_  aSasieni, Maurice W.d_  aFundamentals of operations research  aWiley easternc1984  a455p.  bcdefg_  a41195 W  c35600d35600  02104070aPUbPUd2000-01-24l0o p41195yBK