Some observations on coal-mine haulage hazards

Author:	Sanford, H. E.
Year:	1948
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7467
Series:	Information circular / United States Department of the Interior, Bureau of Mines ;
Report Number:	7467
Subjects:	Coal mines and mining--Safety measures
	Mine haulage--Safety measures
Link:	https://hdl.handle.net/2027/mdp.39015077578600