00677nam0-22002411i-450-990002676570403321000267657FED01000267657(Aleph)000267657FED0100026765720000920d1971----km-y0itay50------baENGSystema analysis for engineers and managersdi StaffordNew YorkMcGraw-Hill1971Stafford,Joseph H.25246ITUNINARICAUNIMARCBK99000267657040332112-7-11-TIs.i.ECAECASystema analysis for engineers and managers428289UNINAING01