https://catalogobiblioteca.ingemmet.gob.pe/cgi-bin/koha/opac-search.pl?idx=an%2Cphr&q=42%26limit%3Dsu-geo%3APERU%26limit%3Dsu-geo%3ALA%20LIBERTAD&format=rss2 Search results for 'an,phr: 42&limit=su-geo:PERU&limit=su-geo:LA LIBERTAD' at Biblioteca - Ingemmet 0 20