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1.- ECUADOR MINING JOURNAL; LONDON; GBR; UNITED KINGDOM, 1998 Ver registro
2.- GENESIS OF EPIZONAL AG VEIN MINERALIZATION AT SAN BARTOLOME IN CENTRAL ECUADOR; TEXTURAL EVIDENCE, FLUID INCLUSIONS, AND STABLE ISOTOPE GEOCHEMISTRY ECONOMIC GEOLOGY PUBLISHING COMPANY; LANCASTER, PA; USA; UNITED STATES, 1997 Ver registro
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