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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:32, 7 May 2021 | 1,365 × 926 (173 KB) | Chris Light | Uploaded a work by Pepper, James F., Wallace De Witt, JR., and David F. Demarest from Pepper, James F., Wallace De Witt, JR., and David F. Demarest; Geology of the Bedford Shale and Berea Sandstone in the Appalachian Basin; Geological Survey Professional Paper 259; United States Department of the Interior, Douglas McKay, Secretary; Geological Survey, W. E. Wrather, Director; United States Government Printing Office, Washington, D.C.; 1954 with UploadWizard |
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