Coal-mine explosives :their characteristics, selection and safe use

Author:	Tiffany, J. E.
Year:	1938
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7040
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7040
Subjects:	Coal mines and mining
	Mine explosions
	Coal mine accidents
Link:	https://hdl.handle.net/2027/mdp.39015077575119