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Weights of various coals
| Author: | Flagg, Samuel B. |
|---|---|
| Year: | 1918 |
| Document Type: | USBM |
| Issuing Agency: | U.S.Bureau of Mines, |
| SUDOC: | I 28.7:184 |
| Series: | Technical paper / United States. Bureau of Mines ; |
| Report Number: | 184 |
| Subject: | Coal--Testing |
| Link: | https://hdl.handle.net/2027/mdp.39015077565714 |
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