Annual report of research and technologic work on coal :fiscal year 1950

Author:	Fieldner, Arno Carl,
Additional Authors:	Gottley, Sidney.
Year:	1951
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7618
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	7618
Subjects:	Coal--United States
	Coal--Research
Link:	https://hdl.handle.net/2027/mdp.39015078456079