Thickness of bituminous coal and lignite seams mined in 1960

Author:	Young, W. H.
Additional Authors:	Anderson, R. L.
Year:	1962
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8118
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	8118
Subjects:	Lignite--United States
	Bituminous coal--United States
Link:	https://hdl.handle.net/2027/mdp.39015078456269