Coal-research activities of the Bureau of Mines

Author:	Fieldner, Arno Carl,
Year:	1946
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7367
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7367
Subjects:	Coal--United States
	Coal--Research
Link:	https://hdl.handle.net/2027/mdp.39015074127971