APA (7th ed.) Citation

Nelms, D. L., & Brockman, A. R. (1997). Hydrogeology of, and quality and recharge ages of ground water in Prince William County, Virginia, 1990-91. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Nelms, David L., and Allen R. Brockman. Hydrogeology of, and Quality and Recharge Ages of Ground Water in Prince William County, Virginia, 1990-91. Richmond, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 1997.

MLA (9th ed.) Citation

Nelms, David L., and Allen R. Brockman. Hydrogeology of, and Quality and Recharge Ages of Ground Water in Prince William County, Virginia, 1990-91. U.S. Dept. of the Interior, U.S. Geological Survey, 1997.