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Preparation Characteristics of Pennsylvania Anthracite from the Bottom Red Ash Bed, Northern Field
| Author: | Sanner, William S. |
|---|---|
| Year: | 1967 |
| Document Type: | N/A |
| SUDOC: | I 28.23:6989 |
| Series: | United States Bureau of Mines Reports |
| Report Number: | R. I. 6989 |
| Subject: | Anthracite coal -- Pennsylvania. |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc38711/ |
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