Excess Nitrogen in the U.S. Environment: Trends, Risks, and Solutions Image Date Issued 2012 Author Davidson, Eric A. David, Mark B. Galloway, James N. Goodale, Christine L. Haeuber, Richard Harrison, John A. Howarth, Robert W. Jaynes, Dan B. Lowrance, Richard Nolan, B. Thomas Peel, Jennifer L. Pinder, Robert W. Porter, Ellen Snyder, Clifford S. Townsend, Alan R. Ward, Mary H. Main Topic Water Conveyance & Hydraulics
