Suggested Topics within your search.
Suggested Topics within your search.
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by Bristol, Hubert M.
Urbana, Ill. : Illinois State Geological Survey, 1968
Urbana, Ill. : Illinois State Geological Survey, 1968
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Book
3
by Fleck, William B.
Lansing, Mich. : Dept. of the Interior, Geological Survey, 1980
Lansing, Mich. : Dept. of the Interior, Geological Survey, 1980
Government Document
Book
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by Miller, W. R.
Washington : Dept. of the Interior, Geological Survey : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1976
Washington : Dept. of the Interior, Geological Survey : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1976
Government Document
Book
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by Sandberg, Charles A. (Charles Albert), 1929-
Washington : U.S. Govt. Print. Off., 1975
Washington : U.S. Govt. Print. Off., 1975
Government Document
Book
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by Berg, Thomas M.
Harrisburg, Pa. : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1979
Harrisburg, Pa. : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1979
Book
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by Craig, Lawrence C. (Lawrence Carey), 1918-
Washington : U.S. Govt. Print. Off., 1978
Washington : U.S. Govt. Print. Off., 1978
Government Document
Book
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