https://catalogobiblioteca.ingemmet.gob.pe/cgi-bin/koha/opac-search.pl?q=ccl=an%3A21541%20and%20au%3AMarocco%2C%20Ren%C3%83%C2%A9&format=rss2 Search results for 'an:21541 and au:Marocco, René' at Biblioteca - Ingemmet 0 20