https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A%221565%22%20and%20au%3A%20LaFontaine%2C%20Gustavo%20and%20itype%3ABK%20and%20au%3ATrejo%20Portillo%2C%20Antonio%20de%20Jes%C3%83%C2%BAs%20and%20au%3AVillanueva%20Ort%C3%83%C2%ADz%2C%20Jos%C3%83%C2%A9%20Eliseo&format=rss2 Search results for 'an:"1565" and au: LaFontaine, Gustavo and itype:BK and au:Trejo Portillo, Antonio de Jesús and au:Villanueva Ortíz, José Eliseo' at Biblioteca UGB 0 20