APA (7th ed.) Citation

Geological Survey (U.S.) & Ryder, R. T. (2009). Geologic cross section D-D' through the Appalachian Basin from the Findlay Arch, Sandusky County, Ohio, to the Valley and Ridge Province, Hardy County, West Virginia. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Robert T. Ryder. Geologic Cross Section D-D' Through the Appalachian Basin from the Findlay Arch, Sandusky County, Ohio, to the Valley and Ridge Province, Hardy County, West Virginia. Reston, Va.: U.S. Geological Survey, 2009.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Robert T. Ryder. Geologic Cross Section D-D' Through the Appalachian Basin from the Findlay Arch, Sandusky County, Ohio, to the Valley and Ridge Province, Hardy County, West Virginia. U.S. Geological Survey, 2009.