https://catalogobiblioteca.ingemmet.gob.pe/cgi-bin/koha/opac-search.pl?q=ccl=an%3A1398%20and%20au%3AUrbina%20Schmitt%2C%20Mario&format=rss2 Search results for 'an:1398 and au:Urbina Schmitt, Mario' at Biblioteca - Ingemmet 0 20