Microfilming maps of abandoned anthracite mines :mines of the eastern middle field

Author:	Whaite, Ralph H.
Year:	1965
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:8274
Series:	Information circular / Bureau of Mines ;
Report Number:	8274
Subjects:	Mine maps
	Microphotography
	Anthracite coal--Pennsylvania--Maps
Link:	https://hdl.handle.net/2027/mdp.39015078464461