https://catalogobiblioteca.ingemmet.gob.pe/cgi-bin/koha/opac-search.pl?idx=an%2Cphr&q=42%26limit%3Dsu-to%3AMINERALIZACION%26limit%3Dau%3AWilliams%2C%20Patrick%20J.&format=rss2 Search results for 'an,phr: 42&limit=su-to:MINERALIZACION&limit=au:Williams, Patrick J.' at Biblioteca - Ingemmet 0 20