APA (7th ed.) Citation

Chapman, M. J. (2013). Naturally occurring contaminants in the Piedmont and Blue Ridge cystalline-rock aquifers and Piedmont Early Mesozoic basin siliciclastic-rock aquifers, eastern United States, 1994-2008. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Chapman, M. J. Naturally Occurring Contaminants in the Piedmont and Blue Ridge Cystalline-rock Aquifers and Piedmont Early Mesozoic Basin Siliciclastic-rock Aquifers, Eastern United States, 1994-2008. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2013.

MLA (9th ed.) Citation

Chapman, M. J. Naturally Occurring Contaminants in the Piedmont and Blue Ridge Cystalline-rock Aquifers and Piedmont Early Mesozoic Basin Siliciclastic-rock Aquifers, Eastern United States, 1994-2008. U.S. Department of the Interior, U.S. Geological Survey, 2013.