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| | USGS Water Resources of Virginia Bibliography |
 | | Powars, D.S., 2000, The effects of the Chesapeake Bay impact crater on the geologic framework and the correlation of hydrogeologic units of southeastern Virginia, south of the James River: U.S. Geological Survey Professional Paper 1622, 53 p., 1 pl. |
 | | Nelms, D.L., and Ahlin, R.J., 1993, Use of chlorofluorocarbons to age date ground water in Prince William County, Virginia [abs.], in Collected abstracts of the Virginia Water Resources Conference, Richmond, Va., 1993, p. |
 | | Powell, J.D., Hufschmidt, P.W., and Larson, J.D., 1982, Geochemistry of ground water in the coal-producing area of southwest Virginia: 1982 Symposium on Surface Mining Hydrology, Sedimentation and Reclamation, University of Kentucky, Lexington, Ky., 1982, p. |
| va.water.usgs.gov /GLOBAL/biblio.htm (10822 words) |
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