Major ash constituents in U.S. coals / by R.F. Abernethy, M.J. Peterson, and F.H. Gibson.
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Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
1969.
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Series: | Report of investigations (United States. Bureau of Mines) ;
7240. |
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