Annual report of research and technologic work on coal :fiscal year 1949

Author: Fieldner, Arno Carl,
Additional Authors: Gottlieb, Sidney.
Year: 1950
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:7565
Series: Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number: 7565
Subjects: Coal mines and mining--United States
Coal
Link: https://hdl.handle.net/2027/mdp.39015078455550

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