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1
Geologic field guide of Somerset County, Pennsylvania /
by Namie, Russell G.
[California, PA : California State College], 1980

Thesis Book
2
Pennsylvanian system in the United States, a symposium.
Tulsa, Okla. : The Association, 1962

Book
3
Revised lithostratigraphic nomenclature of the Pottsville and Allegheny groups (Pennsylvanian), Clearfield County, Pennsylvania
by Edmunds, William E.
Harrisburg, Pennsylvania Geological Survey, 1969

Book
4
The Precambrian in the subsurface of northwestern Pennsylvania and adjoining areas /
by Saylor, Timothy E.
Harrisburg : Pennsylvania Geological Survey, 1968

Book
5
Pennsylvanian fusulinids from southeastern Alaska /
by Douglass, Raymond C. (Raymond Charles)
Washington : U.S. Govt. Print. Off., 1971

Government Document Book
6
Pennsylvanian geology of a part of the southern Appalachian coal field,
by Wanless, Harold R. (Harold Rollin), 1899-1970
[Baltimore], [Waverly Press] 1946

Book
7
Elements of Pennsylvanian stratigraphy, central Appalachian Basin /
Boulder, Colo. : Geological Society of America, 1994

Book
8
Footprints in stone : fossil traces of coal-age tetrapods /
by Buta, Ronald James, Kopaska-Merkel, David C.
Tuscaloosa : The University of Alabama Press, 2016

Book
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