00654nam0-22002411i-450-990002689740403321000268974FED01000268974(Aleph)000268974FED0100026897420000920d1971----km-y0itay50------baENGAuditinga conceptinal approach.by T. W . Porter and J.C. BurtonBelmont (California)Wadsworth1971Porter,T.W.370922ITUNINARICAUNIMARCBK99000268974040332126-5-15s.i.ECAECAAuditing425044UNINAING01