Principles of mining : valuation, organization and administration /
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| Main Author: | |
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| Format: | Texto biblioteca |
| Language: | eng |
| Published: |
London : McGraw-Hill,
1909
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| Subjects: | INGENIERIA DE MINAS, MINERIA, RECURSOS MINERALES, INDUSTRIA MINERA, COBRE, ORO, PLOMO, PLATA, ESTAÑO, ZINC, |
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