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2
Paris : International Union of Geological Sciences, 1981

Book
3
by Wicander, Reed, 1946-
Lawrence, Kan. : The Paleontological Society : Allen Press, 1999

Book
4
by Sheng, Shen-Fu
Ottawa : International Union of Geological Sciences, 1980

Book
5
6
by Barnes, Christopher R.
Ottawa : International Union of Geological Sciences, 1981

Book
7
by McCracken, Alexander D.
[Ottawa, Ont.] : Energy, Mines, and Resources Canada, 1989

Book
8
by Kolata, Dennis R.
[Tulsa, Okla.] : Paleontological Society, 1975

Book
9
by Ross, Reuben James, 1918-
New Haven, Conn. : The Peobody Museum of Natural History, Yale University, 1951

Book
10
by Donaldson, Alan Chase
[University Park, Pa.] : [Pennsylvania State University], 1959

Thesis Book
11
by Barosh, Patrick J. (Patrick James), 1936-
Washington, D.C. : Denver, CO : U.S. G.P.O. ; For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1989

Government Document Book
12
by Liljeroth, Maria
Chichester, West Sussex : John Wiley & Sons, Incorporated, 2017

Book
13
by Buehler, Edward J.
New Haven, Connecticut : The Peabody Museum of Natural History, Yale University, 1955

Thesis Book
14
by Lees, John A.
Harrisburg, [Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey] 1967

Book
15
by Urbanek, Adam, Towe, Kenneth M.
Washington, Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] 1974

Government Document Book
16
17
by Thompson, Richard Rogers
Harrisburg, [Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey] 1963

Book
18
by Neuman, Robert B., 1920-
Washington : U.S. Govt. Print. Off., 1964

Book
19
by Wagner, Walter Richard, 1928-1974
Harrisburg [Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey] 1966

Book
20
by Neuman, Robert B., 1920-
Washington, U.S. Govt. Print. Off., 1967

Government Document Book