https://catalogobiblioteca.ingemmet.gob.pe/cgi-bin/koha/opac-search.pl?q=ccl=an%3A687%20and%20su-to%3AESTRATIGRAFIA%20and%20au%3AJaillard%2C%20Etienne&format=rss2 Search results for 'an:687 and su-to:ESTRATIGRAFIA and au:Jaillard, Etienne' at Biblioteca - Ingemmet 0 20