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Economic size of metal-mine airways
| Author: | McElroy, G. E. |
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| Year: | 1932 |
| Document Type: | MAIN |
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, |
| SUDOC: | C 22.11:6585 |
| Series: | Information circular / United States Department of Commerce, Bureau of Mines ; |
| Report Number: | 6585 |
| Subject: | Mine ventilation |
| Link: | https://hdl.handle.net/2027/mdp.39015095085588 |
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