Fire fighting facilities at four Pennsylvania bituminous-coal mines

Author:	Grove, G. W.
Additional Authors:	Simpson, O. V.
Year:	1949
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7498
Series:	Information circular / Bureau of Mines ;
Report Number:	7498
Subjects:	Coal mines and mining--Pennsylvania--Safety measures
	Bituminous coal--Pennsylvania
Link:	https://hdl.handle.net/2027/mdp.39015078463455