APA (7th ed.) Citation

Arnold, T. L. (2020). Groundwater-quality and select quality-control data from the National Water-Quality Assessment Project, January through December 2016, and previously unpublished data from 2013 to 2015. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Arnold, Terri L. Groundwater-quality and Select Quality-control Data from the National Water-Quality Assessment Project, January Through December 2016, and Previously Unpublished Data from 2013 to 2015. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2020.

MLA (9th ed.) Citation

Arnold, Terri L. Groundwater-quality and Select Quality-control Data from the National Water-Quality Assessment Project, January Through December 2016, and Previously Unpublished Data from 2013 to 2015. U.S. Department of the Interior, U.S. Geological Survey, 2020.