APA (7th ed.) Citation

Wright, W. G. (1991). Ground-water hydrology and quality in the Valley and Ridge and Blue Ridge physiographic provinces of Clarke County, Virginia. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Wright, Winfield G. Ground-water Hydrology and Quality in the Valley and Ridge and Blue Ridge Physiographic Provinces of Clarke County, Virginia. Richmond, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 1991.

MLA (9th ed.) Citation

Wright, Winfield G. Ground-water Hydrology and Quality in the Valley and Ridge and Blue Ridge Physiographic Provinces of Clarke County, Virginia. U.S. Dept. of the Interior, U.S. Geological Survey, 1991.