Bureau of mines research and technologic work on coal, 1960

Year:	1962
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines ,
SUDOC:	I 28.27:8119
Series:	Information circular / Bureau of Mines ;
Report Number:	8119
Subjects:	Coal--United States
	Coal--Research
Link:	https://hdl.handle.net/2027/mdp.39015077564220