01042nam--2200349---450-99000332123020331620090929135033.0000332123USA01000332123(ALEPH)000332123USA0100033212320090929d1983----km-y0itay50------barngUS||||||||001yyEnsuring data base integrityWilliam E. PerryNew YorkJohn Wiley & Sonscopyr. 1983IX, 378 p.ill. tab.28 cm<<A>> Ronald Press Publication2001<<A>> Ronald Press PublicationArchivi di dati-GestioneElaborazione elettronica dei dati657.453PERRY,William E.491277ITsalbcISBD990003321230203316657.453 PER19415/CBS657.45300328527BKSCIRSIAV69020090929USA011350Ensuring data base integrity1121327UNISA