Bituminous coal fields of Pennsylvania.

Bibliographic Details
Corporate Authors:	Pennsylvania. Bureau of Topographic and Geologic Survey, United States. Bureau of Mines
Other Authors:	Ashley, Geo. H. (George Hall), 1866-1951, Sisler, James D. (James Donaldson), 1894-, Reese, John F.
Format:	Book
Language:	English
Published:	Harrisburg, [publisher not identified] ; 1925-
Series:	Mineral resource report ; 6.
Subjects:	Bituminous coal. Coal > Pennsylvania. Coal > Analysis.

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