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Rules and Regulations for Metal Mines
| Author: | Ingalls, W. R. |
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| Additional Authors: | Douglas, James, Finlay, J. R., Channing, J. Parke |
| Year: | 1915 |
| Document Type: | N/A |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Bulletin 75 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc12287/ |
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