Etiqueta de registo: 00220ny j2200097n 45
001 116599
003 http://id.bnportugal.gov.pt/aut/catbnp/116599
095 ## $aPTBN00086713
100 ## $a19940126apory0103 ba
152 ## $bSIPOR
250 ## $aTeoria dos sistemas
450 ## $aTeoria sistémica$3116600
801 #0 $aPT$bBN$c19940126