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Thickness of bituminous coal and lignite seams mined in 1960
Recovery percentage of bituminous coal deposits in the United States (in two parts).
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Published Year
1960-1969 (2) *
Subject
Bituminous coal--United States (2) *
Lignite--United States (1)
Author
Anderson, R. L. (1)
Lowrie, Raymond L. (1)
Young, W. H. (1)
