Search Results - Campbell, John A. (John Arthur), 1930-

Petrology of the Permo-Triassic red beds of the northern Colorado Front Range and south central Wyoming / by Campbell, John A. (John Arthur), 1930-

The Devonian system of west central Colorado / by Campbell, John A. (John Arthur), 1930-

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Revisions of Middle Jurassic nomenclature in the southeastern San Juan basin, New Mexico / by Condon, Steven M., Campbell, John A. (John Arthur), 1930-, Stanesco, John D.

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Geology, geochemistry, and uranium favorability of Tertiary rocks in south-central Alaska. by Dickinson, Kendell A., 1931-, Campbell, John A. (John Arthur), 1930-, Dula, William Frederick

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Geology, geochemistry, and uranium favorability of Tertiary rocks in south-central Alaska. by Dickinson, Kendell A., 1931-, Campbell, John A. (John Arthur), 1930-, Dula, William Frederick

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Revisions of Middle Jurassic nomenclature in the southeastern San Juan basin, New Mexico / by Condon, Steven M.

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