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Estimate of Known Recoverable Reserves of Coking Coal in Armstrong County, Pennsylvania.

Published Year

• 1950-1959 (1)

Subject

• Coal -- Pennsylvania -- Armstrong County. (1)
• Coal properties -- Pennsylvania -- Armstrong County. (1) *

Author

• Abernethy, R. F. (1)
• Dowd, James J. (1)
• Toenges, Albert L. (1) *
• Turnbull, Louis A. (1)

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