https://catalogobiblioteca.ingemmet.gob.pe/cgi-bin/koha/opac-search.pl?q=ccl=an%3A%2215053%22%20and%20au%3AVallejo%2C%20Cristian%20F.%20and%20su-geo%3AANDES&format=rss2 Search results for 'an:"15053" and au:Vallejo, Cristian F. and su-geo:ANDES' at Biblioteca - Ingemmet 0 20