http://biblioteca.culturacusco.gob.pe/cgi-bin/koha/opac-search.pl?q=ccl=an%3A268%20and%20au%3ACalvo%20Calvo%2C%20Rossano%20and%20au%3AUgarte%20Vega%20Centeno%2C%20David&format=rss2 Search results for 'an:268 and au:Calvo Calvo, Rossano and au:Ugarte Vega Centeno, David' at Biblioteca Central DDC-Cusco 0 20