APA (7th ed.) Citation

Kappel, W. M., & Geological Survey (U.S.). (2013). Dissolved methane in groundwater, Upper Delaware River Basin, Pennsylvania and New York, 2007-12. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Kappel, William M.,, and Geological Survey (U.S.). Dissolved Methane in Groundwater, Upper Delaware River Basin, Pennsylvania and New York, 2007-12. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2013.

MLA (8th ed.) Citation

Kappel, William M.,, and Geological Survey (U.S.). Dissolved Methane in Groundwater, Upper Delaware River Basin, Pennsylvania and New York, 2007-12. U.S. Department of the Interior, U.S. Geological Survey, 2013.