https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A1485%20and%20au%3ARivera%20Mart%C3%83%C2%ADnez%2C%20Francisco&format=rss2 Search results for 'an:1485 and au:Rivera Martínez, Francisco' at Biblioteca UGB 0 20