Notes on minig and smelting in the State of Durango, México. - (:unkn) unknown ([s.e], 1900)
no. 1, 5p.
Keywords: info:eu-repo/classification/cti/1; info:eu-repo/classification/cti/25; info:eu-repo/classification/UNESCO/concept157; info:eu-repo/classification/GeoRef/Earth sciences; Minería; Durango, México; México; info:eu-repo/classification/LCC/Earth sciences