How mine workers can help to prevent mine explosions

Author:	Harrington, D.
Year:	1940
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7138
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7138.
Subjects:	Mine explosions--United States
	Mine fires--United States
	Coal mine accidents--United States
Link:	https://hdl.handle.net/2027/mdp.39015095086396