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1Subjects: “...Geology, Stratigraphic Silurian....”
Government Document Book -
2by Maughan, Edwin K., 1926-1995Subjects: “...Geology, Stratigraphic Mississippian....”
Published 1990
Government Document Microform Book -
3by Berryhill, Henry L., Jr. (Henry Lee), 1921-2013, Schweinfurth, Stanley P., Kent, Bion H. (Bion Huntley), 1925-Subjects: “...Geology, Stratigraphic Permian....”
Published 1971
Government Document Book -
4by Swartz, Frank McKim, 1899-Subjects: “...Geology, Stratigraphic Cambrian....”
Published 1950
Book -
5by Fettke, Charles R. (Charles Reinhard), 1888-1959Subjects: “...Geology, Stratigraphic....”
Published 1950
Book -
6by Fettke, Charles R. (Charles Reinhard), 1888-1959Subjects: “...Geology, Stratigraphic....”
Published 1956
Book -
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11by Condra, Geo. E. (George Evert), 1869-1958Subjects: “...Geology, Stratigraphic Pennsylvania....”
Published 1949
Book -
12by Peltier, Louis C.Subjects: “...Geology, Stratigraphic Pleistocene....”
Published 1949
Thesis Book -
13Published 1986Subjects: “...Geology, Stratigraphic Pennsylvania....”
Book -
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15by Wanless, Harold R. (Harold Rollin), 1899-1970Subjects: “...Geology, Stratigraphic Pennsylvania....”
Published 1939
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17Published 1994Subjects: “...Geology, Stratigraphic Pleistocene....”
Government Document Microform Book -
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20by Whitcomb, Lawrence, 1900-Subjects: “...Geology, Stratigraphic Ordovician....”
Published 1932
Book