Strippable reserves of bituminous coal and lignite in the United States

Year:	1971
Document Type:	USBI
Issuing Agency:	Bureau of Mines,
SUDOC:	I 28.27:8531
Series:	Information circular / Bureau of Mines ;
Report Number:	8531
Subjects:	Bituminous coal
	Lignite--United States
	Strip mining
	Coal--Geology--United States
Link:	https://hdl.handle.net/2027/mdp.39015078456681