APA (7th ed.) Citation

National Water-Quality Assessment Program (U.S.), Geological Survey (U.S.), & Bonn, B. (1995). Analysis of nutrient and ancillary water-quality data for surface and ground water of the Willamette Basin, Oregon, 1980-90. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

National Water-Quality Assessment Program (U.S.), Geological Survey (U.S.), and Bernadine Bonn. Analysis of Nutrient and Ancillary Water-quality Data for Surface and Ground Water of the Willamette Basin, Oregon, 1980-90. Portland, Or.: U.S. Geological Survey, 1995.

MLA (9th ed.) Citation

National Water-Quality Assessment Program (U.S.), et al. Analysis of Nutrient and Ancillary Water-quality Data for Surface and Ground Water of the Willamette Basin, Oregon, 1980-90. U.S. Geological Survey, 1995.