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A guide to geologic features in coal mines in the northern Appalachian coal basin

Published Year

• 1980-1989 (1)

Subject

• Coal mines and mining--Appalachian Region--Safety measures (1)
• Coal--Geology--Appalachian Region (1)
• Ground control (Mining)--Appalachian Region (1) *

Author

• Jansky, Jacqueline H. (1)
• Jeran, P. W. (1) *

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