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Estimate of Known Recoverable Reserves of Coking Coal in Clarion County, Pennsylvania
| Author: | Blaylock, D. W. |
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| Additional Authors: | Dowd, James J., Abernethy, R. F. |
| Year: | 1956 |
| Document Type: | N/A |
| Series: | United States Bureau of Mines Reports |
| Report Number: | R. I. 5231 |
| Subject: | Coal -- Pennsylvania -- Clarion County. |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc38642/ |
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