by M.K. Landon ... [and others] ; prepared in cooperation with the University of Minnesota Department of Soil, Water, and Climate, the U.S. Department of Agriculture, Agricultural Research Service, and the Minnesota Pollution Control Agency
by G.F. Lindholm ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Department of Natural Resources, Division of Waters
by G.F. Lindholm ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Department of Natural Resources, Division of Waters, Soils, and Minerals
by W.L. Broussard [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Department of Natural Resources, Division of Waters, Soils, and Minerals
by G.F. Lindholm ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Department of Natural Resources, Division of Waters, Soils, and Minerals
by P.G. Olcott ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Department of Natural Resources, Division of Waters, Soils, and Minerals
by J.O. Helgesen ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Department of Natural Resources, Division of Waters, Soils, and Minerals
by G.F. Lindholm ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Department of Natural Resources, Division of Waters, Soils, and Minerals
by R.D. Cotter ... [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Department of Conservation, Division of Waters, Soils, and Minerals
by H.W. Anderson [and others] ; Department of the Interior, United States Geological Survey ; prepared in cooperation with the Minnesota Department of Natural Resources, Division of Waters, Soils, and Minerals