Bleeder system in virgin area in a Pittsburgh coalbed mine

Author:	Krickovic, Stephen.
Additional Authors:	Carpetta, J. E., Moore, T. D.
Year:	1973
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of Interior, Bureau of Mines,
SUDOC:	I 28.23:7805
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	7805
Subjects:	Firedamp
	Coal mines and mining--West Virginia
	Mine gases--West Virginia
	Methane
	Mine ventilation
Link:	https://hdl.handle.net/2027/mdp.39015078521716