Classification chart of typical coals of the United States : showing B.t.u. per pound on the moist, mineral-matter-free basis, plotted against fixed carbon on the dry, mineral-matter-free basis / by A.C. Fieldner, W.A. Selvig, and W.H. Frederic.
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Main Author: | |
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Other Authors: | , |
Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1939.
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Edition: | Rev. |
Series: | Report of investigations (United States. Bureau of Mines) ;
3296R. |
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