U.S. Bureau of Mines Publications, Alaska | |
U.S. Bureau of Mines Open File Report 174-84 |
Title: | Columbium in the Gold- and Tin-Bearing Placer Deposits near Tofty, Alaska | |
Author: | Dennis D. Southworth | |
Year: | 1984 | |
Pages: | 21 pp. | |
Availability: | OFR 174-84 (PDF format, 2,183 Kb) |
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