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Some factors affecting losses of coal in mining
| Author: | Rice, George S. |
|---|---|
| Year: | 1921 |
| Document Type: | BMRA |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.23:2237 |
| Series: | Report of investigations / United States. Bureau of Mines ; |
| Report Number: | 2237 |
| Subjects: | Coal mines and mining--United States |
| Anthracite coal mines and mining | |
| Bituminous coal mines and mining | |
| Coal mines and mining | |
| Link: | https://hdl.handle.net/2027/mdp.39015086555300 |
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