Analyses and measured sections of Pennsylvania Bituminous coals
By: by Robert D. Sponseller
Series: Mineral resource report -- 66; Bulletin M -- 66.; Mineral resource report -- 66.
Publisher: [Commonwealth of Pennsylvania]; [Bureau of Topographic and Geologic Survey]
Published: 1973
Place of publication: Harrisburg
Language: eng
Subjects: Bituminous coal; Stratigraphic Geology
Notes: "Pennsylvania Geological Survey, fourth series."

Includes references.