Bureau of mines research and technologic work on coal, 1959

Year: 1962
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines ,
SUDOC: I 28.27:8098
Series: Information circular / Bureau of Mines ;
Report Number: 8098
Subjects: Coal--United States
Coal--Research
Link: https://hdl.handle.net/2027/mdp.39015078535096

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