APA (7th ed.) Citation

Pepper, J. F., De Witt, W., Jr., & Demarest, D. F. (1954). Geology of the Bedford shale and Berea sandstone in the Appalachian basin. United States Department of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Pepper, James F., Wallace De Witt, Jr, and David F. Demarest. Geology of the Bedford Shale and Berea Sandstone in the Appalachian Basin. Washington: United States Department of the Interior, Geological Survey, 1954.

MLA (9th ed.) Citation

Pepper, James F., et al. Geology of the Bedford Shale and Berea Sandstone in the Appalachian Basin. United States Department of the Interior, Geological Survey, 1954.