Selected geologic factors affecting mining of the Pittsburgh coalbed

Additional Authors:	Diamond, W. P., McCulloch, C. M., Deul, Maurice., Bench, B. M.
Year:	1975
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:8093
Series:	Report of investigations - Bureau of Mines ;
Report Number:	8093
Subjects:	Coal mines and mining--Pennsylvania
	Methane
	Coal mines and mining--West Virginia
Link:	https://hdl.handle.net/2027/mdp.39015078474940