https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A7951%20and%20su-to%3ACONTABILIDAD%20and%20au%3AGonz%C3%83%C2%A1lez%2C%20Cristobal%20del%20R%C3%83%C2%ADo&format=rss2 Search results for 'an:7951 and su-to:CONTABILIDAD and au:González, Cristobal del Río' at Biblioteca UGB 0 20