http://catalogo.umet.edu.ar/cgi-bin/koha/opac-search.pl?q=ccl=an%3A1790%20_dsc%20and%20su-to%3ADefensa&format=rss2 Search results for 'an:1790 _dsc and su-to:Defensa' at Catalogo de las Biblioteca UMET - ISO y CITRA (CONICET) 0 20