Organizations with programs beneficial to coal-mine employees

Author:	Walker, W. D.,
Additional Authors:	Polack, S. P.
Year:	1953
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7665
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	7665
Subjects:	Coal mines and mining--Safety measures
	Mine safety
Link:	https://hdl.handle.net/2027/mdp.39015078456509