https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?idx=an%2Cphr&q=50%26limit%3Dholdingbranch%3AUSU%26limit%3Dau%3AFern%C3%83%C2%A1ndez%20de%20Villavicencio%2C%20Matuca&format=rss2 Search results for 'an,phr: 50&limit=holdingbranch:USU&limit=au:Fernández de Villavicencio, Matuca' at Biblioteca UGB 0 20