Classification Chart of Typical Coals of the United States.
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Contributions
- Fieldner, A.C. - Contributor
- Selvig, W.A. - Contributor
- Frederic, W.H. - Contributor
Publication
1935 - s.n, S.l
Language
English
Subjects
Series Statement
- Report of investigations (United States. Bureau of Mines) -- 3296
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