submitted by the U.S. Department of Transportation, Federal Highway Administration, Minnesota Department of Transportation and Wisconsin Department of Transportation
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
prepared by the Office of Crystalline Repository Development, Battelle Project Management Division under Contract no. DE-AC02-83CH10139 with the U.S. Department of Energy