Etiqueta de registo: 00262nx j2200097n 45
001 243522
003 http://id.bnportugal.gov.pt/aut/catbnp/243522
095 ## $aPTBN00208868
100 ## $a19970313apory0103 ba
152 ## $bSIPOR
250 ## $aTelecomunicações$xHistória$yPortugal$z1877-1990
675 ## $a654(469)"1877/1990"$vBN$zpor
801 #0 $aPT$bBN$c19970313