http://biblioteca1.aunar.edu.co/cgi-bin/koha/opac-search.pl?q=ccl=su-na%3Dau%3A%22Guerrero%20Y%C3%A9pez%2C%20Ana%20Cristina&format=rss2 Search results for 'su-na=au:"Guerrero Yépez, Ana Cristina' at Biblioteca Zambrano Bucheli AUNAR 0 20