Analyses of Kentucky coals

Year:	1922
Document Type:	USBM
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.7:308
Series:	Technical paper / United States Department of the Interior, Bureau of Mines ;
Report Number:	308
Subjects:	Coal mines and mining--Kentucky
	Coal--Analysis
Link:	https://hdl.handle.net/2027/mdp.39015095081975