APA (7th ed.) Citation

Nystrom, E. A. (2007). Ground-water quality in the Delaware River basin, New York, 2001 and 2005-2006. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Nystrom, Elizabeth A. Ground-water Quality in the Delaware River Basin, New York, 2001 and 2005-2006. Reston, Va.: U.S. Geological Survey, 2007.

MLA (9th ed.) Citation

Nystrom, Elizabeth A. Ground-water Quality in the Delaware River Basin, New York, 2001 and 2005-2006. U.S. Geological Survey, 2007.