File:TungstenPropertiesInTheGerlachArea1943.jpg
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From M. R. Klepper, C. W. Chesterman, "Tungsten Deposits of the Gerlach Area," USGS, 1943.
The source for this image is http://www.nbmg.unr.edu/scans/2340/23400014.pdf.
As this work was prepared by the US Government, it is not copyrighted.
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current | 02:38, 17 February 2015 | 3,492 × 3,077 (412 KB) | Cxbrx (talk | contribs) | From M. R. Klepper, C. W. Chesterman, "[http://www.nbmg.unr.edu/scans/0160/01600026.pdf Tungsten Deposits of the Gerlach Area]," USGS, 1943. The source for this image is http://www.nbmg.unr.edu/scans/2340/23400014.pdf. As this work was prepared by... |
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