Timbering of metal mines / by E.A. Holbrook, Richard V. Ageton, and Harry E. Tufft.
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| Main Authors: | , , |
| Corporate Author: | |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
Govt. Print. Off,
1923.
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| Series: | Bulletin (United States. Bureau of Mines) ;
215. |
| Subjects: |