The U.S. Geological Survey, in cooperation with North Dakota State University Agriculture Research Extension and in collaboration with North Dakota State Department of Health, North Dakota State Water Commission, U.S. Environmental Protection Agency, a
Nustad, Rochelle A. ranustad@usgs.gov,Rowland, Kathleen M. krowland@usgs.gov,Wiederholt, Ronald. Water-quality characteristics in runoff for three discovery farms in North Dakota, 2008-12. 2015-01-01.