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Economic Methods of Utilizing Western Lignites
| Author: | Babcock, E. J. |
|---|---|
| Year: | 1915 |
| Document Type: | N/A |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Bulletin 89 |
| Subject: | Lignite. |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc38742/ |
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