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Permissible Electric Cap Lamps and Ventilation in Certain California Mines and Water-Tunnel Construction
| Author: | Ash, S. H. (Simon Harry), b. 1889 |
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| Year: | 1932 |
| Document Type: | N/A |
| Issuing Agency: | United States. Bureau of Mines. |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Bulletin 359 |
| Link: | https://digital.library.unt.edu/ark:/67531/metadc12528/ |
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