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1
Map of the Berea sand of southeastern Ohio, northern West Virginia, and southwestern Pennsylvania : shows thickness of sand and oil and gas pools in the sand /
by Pepper, James F.
[Washington, D.C.] : U.S. Dept. of the Interior, Geological Survey, 1945

Government Document Map
2
Floras of the Pocono formation and Price sandstone in parts of Pennsylvania, Maryland, West Virginia, and Virginia /
by Read, C. B.
Washington : United States Department of the Interior, Geological Survey, 1955

Government Document Book
3
Geology of the Bedford shale and Berea sandstone in the Appalachian basin /
by Pepper, James F., De Witt, Wallace, Jr., 1920-2012, Demarest, David F.
Washington : United States Department of the Interior, Geological Survey, 1954

Government Document Book
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