Work of the Bureau of Mines safety cars in the Pennsylvania anthracite region from 1934 to 1939

Author:	Forbes, John Joseph Vincent.
Additional Authors:	Naus, L. L.
Year:	1940
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7132
Series:	Information circular / Bureau of Mines ;
Report Number:	7132
Subjects:	Mine safety--Equipment and supplies
	Mine rescue work
Link:	https://hdl.handle.net/2027/mdp.39015078534370