Washability studies of coal from the Henry Ellen Bed at Acmar, Ala. / by B.W. Gandrud and G.D. Coe.
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Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.] :
United States Bureau of Mines,
1936.
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Series: | Report of investigations (United States. Bureau of Mines) ;
3315. |
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