Carbonizing Properties and Petrographic Composition of Powellton-bed Coal from Elk Creek No. 1 Mine, Emmett, Logan County, W. Va: And the Effect of Blending this Coal with Pocahontas No. 3- and No. 4-bed Coals
Joseph Dana Davis Β· Dewey A. Reynolds Β· George C. Sprunk Β· Clarence Raymond Holmes
ααααΆ 1941 Β· U.S. Department of the Interior, Bureau of Mines
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