/cgi-bin/koha/opac-search.pl?q=ccl=copydate%3A%221970%22%20and%20au%3ACevallos%20Villacreses%2C%20Pedro%20Ferm%C3%ADn&format=rss2 Search results for 'copydate:"1970" and au:Cevallos Villacreses, Pedro Fermín' at Catálogo de Biblioteca ENA 0 20