Geological Survey (U.S.), Ryder, R. T., Trippi, M. H., & Swezey, C. (2015). Geologic cross section I-I' through the Appalachian basin from the eastern margin of the Illinois Basin, Jefferson County, Kentucky, to the Valley and Ridge Province, Scott County, Virginia. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.), Robert T. Ryder, Michael H. Trippi, and C. Swezey. Geologic Cross Section I-I' Through the Appalachian Basin from the Eastern Margin of the Illinois Basin, Jefferson County, Kentucky, to the Valley and Ridge Province, Scott County, Virginia. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 2015.
MLA (9th ed.) CitationGeological Survey (U.S.), et al. Geologic Cross Section I-I' Through the Appalachian Basin from the Eastern Margin of the Illinois Basin, Jefferson County, Kentucky, to the Valley and Ridge Province, Scott County, Virginia. U.S. Department of the Interior, U.S. Geological Survey, 2015.