00360nam a2200121Ia 4500082001900000100002300019245006500042260002700107300002100134490007300155500000500228700000500233  a658.72bK55.RM  aKingsman, Brian G.  aRaw materials purchasing; an operational research approachb  aOxfordbPergamonc1985  axix, 407p. Index  aFrontiers of operational research and applied system analysisv v. 4  a  a