Investigation of low-grade and complex ores in Colorado.
Saved in:
| Online Access: |
Full Text (via ProQuest) |
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| Corporate Author: | |
| Format: | Government Document eBook |
| Language: | English |
| Published: |
[Washington] :
[s.n.],
1921.
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| Subjects: |
| Item Description: | For related series, see C22.12-2693 to C22.12-3198. |
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| Physical Description: | 1 online resource (4 p.), digital, PDF file. |