<![CDATA[Biblioteca UGB Search for 'Provider:Universidad Gerardo Barrios and au:Márquez Salvador, Williams Edison and au:Guzm��n Bonilla, Sandra Elizabeth']]> https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AUniversidad%20Gerardo%20Barrios%20and%20au%3AM%C3%83%C2%A1rquez%20Salvador%2C%20Williams%20Edison%20and%20au%3AGuzm%C3%AF%C2%BF%C2%BD%C3%AF%C2%BF%C2%BDn%20Bonilla%2C%20Sandra%20Elizabeth&format=rss2 Search results for 'Provider:Universidad Gerardo Barrios and au:Márquez Salvador, Williams Edison and au:Guzm��n Bonilla, Sandra Elizabeth' at Biblioteca UGB 0 20