Estimate of known recoverable reserves of coking coal in Clarion County, Pa. / by D.W. Blaylock [and others]
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| Corporate Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior,
1956.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
5231. |
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| Physical Description: | vi, 27 pages : illustrations, maps ; 27 cm. |
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| Bibliography: | Includes bibliographical references. |