Year: | 1988 |
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Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.2:Is 7 |
Subjects: | Mines and mineral resources--United States |
Mineral industries--United States | |
Links: | https://hdl.handle.net/2027/mdp.39015029873109 |
https://hdl.handle.net/2027/mdp.39015095154244 | |
https://hdl.handle.net/2027/uc1.31210024859751 |