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Coal resources, production, and quality in the Eastern kentucky coal field: Perspectives on the future of steam coal production
James C. Hower, John K. Hiett, Garry D. Wild, Cortland F. EbleVolume:
3
Language:
english
Pages:
21
DOI:
10.1007/bf02259047
Date:
January, 1994
File:
PDF, 1.54 MB
english, 1994