Preparation characteristics of coal from Jefferson County, Pa. / by William L. Crentz and J.W. Miller.
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Format: | Government Document Book |
Language: | English |
Published: |
[Washington, D.C.] :
U.S. Dept. of the Interior, Bureau of Mines,
[1953]
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Series: | Report of investigations (United States. Bureau of Mines) ;
4941. |
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