00637nam0-22002411i-450-990002683770403321000268377FED01000268377(Aleph)000268377FED0100026837720000920d1975----km-y0itay50------baENG<<I >>sistemi informativi.di De Marco Marco.MilanoFranco Angeli1975De Marco,Marco368995ITUNINARICAUNIMARCBK99000268377040332129-8-27s.i.ECAECASistemi informativi427829UNINAING01