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