Columbium.
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| Main Author: | |
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| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, D.C.?] :
Bureau of Mines, U.S. Dept. of the Interior,
[1983]
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| Series: | Mineral commodity profiles.
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| Subjects: |
| Physical Description: | 13 pages : illustrations ; 27 cm. |
|---|---|
| Bibliography: | Bibliography: page 13. |