APA (7th ed.) Citation

(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 / by Robert T. Ryder, Michael H. Trippi, and Christopher S. Swezey.

Chicago Style (17th ed.) Citation

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 / by Robert T. Ryder, Michael H. Trippi, and Christopher S. Swezey. 2015.

MLA (9th ed.) Citation

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 / by Robert T. Ryder, Michael H. Trippi, and Christopher S. Swezey. 2015.