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Necessity for more extended use of safety equipment in mining
| Author: | Harrington, D. |
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| Year: | 1938 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:7036 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 7036 |
| Subject: | Mineral industries--Safety measures |
| Link: | https://hdl.handle.net/2027/mdp.39015095086354 |
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