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<![CDATA[Biblioteca UGB Search for 'Provider:Astrea and se:FilosofÃa y derecho and au:Guibourg, Ricardo A']]> https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AAstrea%20and%20se%3AFilosof%C3%83%C2%ADa%20y%20derecho%20and%20au%3AGuibourg%2C%20Ricardo%20A&format=rss2 Search results for 'Provider:Astrea and se:FilosofÃa y derecho and au:Guibourg, Ricardo A' at Biblioteca UGB 0 20