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Bedrock geology of the evitts creek and Pattersons creek Quadrangles, Maryland, Pennsylvania, and West Virginia / by Wallace de Witt and George W. Colton.

by Witt, Wallace de [1920-2012] | Colton, George W.

Material type: book Book Publisher: Washington : United States Government Printing Office, 1964Availability: Items available for loan: Biblioteca Aranzadi [Call number: 55(73) WIT] (1).
Age of the Bedforf Shale, Berea Sandstone, and Sunbury Shale in the Appalachian and Michigan Basins, Pennsylvania, Ohio and Michigan / By Wallace de Witt.

by Witt, Wallace de [1920-2012].

Material type: book Book Publisher: Washington : United States Government Printing Office, 1970Availability: Items available for loan: Biblioteca Aranzadi [Call number: 55(748+771+774) WIT] (1).
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