APA (7th ed.) Citation

Ator, S. W., & Denis, J. M. (1997). Relation of nitrogen and phosphorus in ground water to land use in four subunits of the Potomac River Basin. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Ator, Scott W., and Janet M. Denis. Relation of Nitrogen and Phosphorus in Ground Water to Land Use in Four Subunits of the Potomac River Basin. Baltimore, Md.: U.S. Dept. of the Interior, U.S. Geological Survey, 1997.

MLA (9th ed.) Citation

Ator, Scott W., and Janet M. Denis. Relation of Nitrogen and Phosphorus in Ground Water to Land Use in Four Subunits of the Potomac River Basin. U.S. Dept. of the Interior, U.S. Geological Survey, 1997.