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Geology -- United States.
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McPhee, John, 1931-
New York : Farrar, Straus and Giroux, 2000.
1st paperback ed.
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Merrill, George P. (George Perkins), 1854-1929.
New York : Hafner Pub. Co., 1964.
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Harris, David V.
Fort Collins : Colorado State University Foundation Press, 1978.
2d ed.
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Harris, Ann G.
Dubuque, Iowa : Kendall/Hunt Pub. Co., [2004]
6th ed.
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Prothero, Donald R.
New York : Columbia University Press, [2009]
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Prothero, Donald R.
New York : Columbia University Press, 2009.
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Sullivan, Walter.
New York, N.Y. : Times Books, [1984]
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Maclure, William, 1763-1840.
Ulm/Donau : W. Fritsch; New York : Stechert-Hafner, 1962.
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American Association of Petroleum Geologists.
Tulsa, Okla., [publisher not identified], 1962.
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Johnson, Arvid M.
San Francisco : Freeman, Cooper, 1970.
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Boulder, Colo. : Geological Society of America, 1992.
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Boulder, Colo. : Geological Society of America, 1991.
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Wright, H. E., Jr. (Herbert Edgar), 1917-2015.
Princeton, N.J. : Princeton University Press, 1965.
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Boulder, Colo. : Geological Society of America, 1988.
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Geological Society of America.
[New York] : Geological Society of America, 1949.
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Hunt, Charles B. (Charles Butler), 1906-1997.
New York : Van Nostrand Reinhold, [1986]
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Shimer, John A.
New York : Columbia University Press, 1959.
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