Review of Bureau of Mines Coal Program, 1968

Author:	Spencer, John D.
Year:	1969
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8416
Series:	Information circular / Bureau of Mines ;
Report Number:	8416
Subjects:	Coal mines and mining--United States
	Coal preparation
Link:	https://hdl.handle.net/2027/mdp.39015077577933