prepared by Agricultural Sub-Committee, Task Group C (Canadian Section), International Reference Group on Pollution of the Great Lakes from Land Use Activities
Bureau of Water Quality, Dept. of Natural Resources in conjunction with Grant County Soil & Water Conservation District [and] Lafayette County Soil & Water Conservation District
prepared by Dane County Soil and Water Conservation District with assistance by U.S. Department of Agriculture, Soil Conservation Service and Forest Service
edited by David J. Allee, Leonard B. Dworsky, Ronald M. North ; sponsored by American Water Resources Association in cooperation with the United States Water Resources Council ... [and others]