by Faith A. Fitzpatrick ... [and others] ; prepared in cooperation with the Lac Courte Oreilles Tribe, Wisconsin Department of Agriculture, Trade, and Consumer Protection
by G.N. Delin ... [and others]. ; prepared in cooperation with the U.S. Department of Agriculture-Agricultural Research Service, University of Minnesota Department of Soil Science, and the Minnesota Pollution Control Agency
by Howard E. Harrison ... [and others] ; prepared in cooperation with the Oregon Department of Environmental Quality, Willamette River Technical Advisory Steering Committee, and the National Water-Quality Assessment Program