APA (7th ed.) Citation

Spruill, T. B., Eimers, J. L., & Morey, A. E. (1997). Nitrate-nitrogen concentrations in shallow ground water of the coastal plain of the Albemarle-Pamlico Drainage Study Unit, North Carolina and Virginia. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Spruill, T. B., Jo Leslie Eimers, and A. Elizabeth Morey. Nitrate-nitrogen Concentrations in Shallow Ground Water of the Coastal Plain of the Albemarle-Pamlico Drainage Study Unit, North Carolina and Virginia. [Reston, Va.]: U.S. Geological Survey, 1997.

MLA (9th ed.) Citation

Spruill, T. B., et al. Nitrate-nitrogen Concentrations in Shallow Ground Water of the Coastal Plain of the Albemarle-Pamlico Drainage Study Unit, North Carolina and Virginia. U.S. Geological Survey, 1997.