Author: | Fieldner, Arno Carl, |
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Year: | 1931 |
Document Type: | BMRA |
Issuing Agency: | United States Bureau of Mines, |
SUDOC: | C 22.12:3079 |
Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 3079 |
Subjects: | Bituminous coal |
Coal-tar | |
Coal industry and trade | |
Link: | https://hdl.handle.net/2027/mdp.39015077567355 |