Safety progress in anthracite and bituminous coal fields

Author:	Harrington, Daniel.
Year:	1932
Document Type:	USBI
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.11:6671
Series:	Information circular / Bureau of Mines ;
Report Number:	6671
Subjects:	Coal trade--United States
	Accidents--Prevention--United States
Link:	https://hdl.handle.net/2027/mdp.39015086485813