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Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
3 results returnedPublished Year
Subject
- Coal--Analysis (2)
- Coal -- Illinois. (1)
- Coal mines and mining--Tennessee (1)
- Coal preparation. (1)
- Coal--Tennessee (1)
- Coal--Virginia (1)
Author
- Crentz, William L. (3) *
- Abernethy, Roy Franklin, (2)
- Anderson, Robert L. (2)
- Bell, C. H. (2)
- Cooper, Harry Mac, (2)
- Fieldner, Arno Carl, (2)
- Fraser, Thomas, (2)
- Snyder, Ned H. (2)
- Swingle, Robert Johnston, (2)
- Tarpley, Edward C. (2)
- Toenges, Albert L. (2)
- Campbell, Marius Robinson, (1)
- Eby, J. Brian (1)
- Nelson, Wilbur Armistead, (1)
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