Schmitt, S. J., Ground Water Ambient Monitoring and Assessment Program (Calif.), California. State Water Resources Control Board., & Geological Survey (U.S.). (2008). Ground-water quality data in the Middle Sacramento Valley study unit, 2006: Results from the California GAMA Program. U.S. Geological Survey.
Chicago Style (17th ed.) CitationSchmitt, Stephen J., Ground Water Ambient Monitoring and Assessment Program (Calif.), California. State Water Resources Control Board, and Geological Survey (U.S.). Ground-water Quality Data in the Middle Sacramento Valley Study Unit, 2006: Results From the California GAMA Program. Reston, Va.: U.S. Geological Survey, 2008.
MLA (8th ed.) CitationSchmitt, Stephen J., et al. Ground-water Quality Data in the Middle Sacramento Valley Study Unit, 2006: Results From the California GAMA Program. U.S. Geological Survey, 2008.