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Estimate of known recoverable reserves of coking coal in Clearfield County, Pa.

Published Year

• 1950-1959 (1)

Subject

• Coal--Pennsylvania (1) *
• Coking coal (1)

Author

• Abernethy, R. F. (1) *
• Blaylock, D. W. (1)
• Dowd, J. J. (1)
• Reynolds, D. A. (1)

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