Etiqueta de registo: 00230nx 2200097n 45
001 253735
095 ## $aPTBN00218788
100 ## $a19970701apory0103 ba
152 ## $bSIPOR
250 ## $aInquéritos sociológicos$xTeorias
675 ## $a303$vBN$zpor
801 #0 $aPT$bBN$c19970701