Constancy of B. t. u. value of "pure" coal

Author:	Barkley, J. F.
Additional Authors:	Burdick, L. R.
Year:	1941
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:3572
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	3572
Subjects:	Coal
	Fuel--Testing
Links:	https://hdl.handle.net/2027/mdp.39015078475780
	no.3561-3580 1941