Milling methods and costs at concentrator of Magma Copper Co., Superior, Ariz.
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| Online Access: |
Full Text (via ProQuest) |
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| Corporate Author: | |
| Other Authors: | , |
| Format: | Government Document eBook |
| Language: | English |
| Published: |
Washington, D.C. :
[s.n.],
1930.
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| Series: | Mines Bur. Info. Circ. No. 6319.
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| Subjects: |
Internet
Full Text (via ProQuest)Online
| Call Number: |
C22.11-6319
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| C22.11-6319 | Available |