Carbonizing properties of Butler County, Pa., coals

Author:	Birge, George W.
Additional Authors:	Wolfson, D. E.
Year:	1962
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:5927
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	5927
Subjects:	Coal--Carbonization
	Coal--Pennsylvania--Butler County
Link:	https://hdl.handle.net/2027/mdp.39015078529479