Sistemas operativos I http://biblio.unaj.edu.ar/cgi-bin/koha/opac-shelves.pl?rss=1&viewshelf=13 RSS feed for public list Sistemas operativos I TeorĂ­a general de los sistemas by Bertalanffy, Ludwig von, http://biblio.unaj.edu.ar/cgi-bin/koha/opac-detail.pl?biblionumber=318