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The escape of gas from coal
| Author: | Porter, Horace C. |
|---|---|
| Additional Authors: | Ovitz, F. K. |
| Year: | 1911 |
| Document Type: | USBM |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.7:2 |
| Series: | Technical paper / United States Department of the Interior, Bureau of Mines ; |
| Report Number: | 2 |
| Link: | https://hdl.handle.net/2027/mdp.39015077560632 |
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