APA (7th ed.) Citation

Bonn, B., Wentz, D. A., Hinkle, S. R., Geological Survey (U.S.), & National Water-Quality Assessment Program (U.S.). (1996). Willamette Basin, Oregon: Nitrogen in streams and ground water, 1980-90. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Bonn, Bernadine., Dennis A. Wentz, Stephen R. Hinkle, Geological Survey (U.S.), and National Water-Quality Assessment Program (U.S.). Willamette Basin, Oregon: Nitrogen in Streams and Ground Water, 1980-90. Portland, Or.: U.S. Geological Survey, 1996.

MLA (8th ed.) Citation

Bonn, Bernadine., et al. Willamette Basin, Oregon: Nitrogen in Streams and Ground Water, 1980-90. U.S. Geological Survey, 1996.