00457nam a2200157 450000100060000010000410000610100080004720000890005521000400014421500200018422500350020460600180023960600150025770000160027285200110028828141 a19990518u y0pory50 ba apor aOs quadros e a revolução informáticaea adaptação necessáriafA. Kaufman aLisboacEditorial Pórticod[s.d.] a191,[3]p.d21cm aDirecção de Empresasvv.34 aINFORMÁTICA aCOMPUTADOR aKaufmanbA. j007FAU