Silicosis as affecting mining workmen and operations

Author:	Harrington, D.
Year:	1936
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:6867
Series:	Information circular / Bureau of Mines ;
Report Number:	6867
Subjects:	Mine safety
	Silicosis--United States
Link:	https://hdl.handle.net/2027/mdp.39015086486183