Creatorby G.N. Delin ... [and others] ; prepared in cooperation with the University of Minnesota Department of Soil Science, the U.S. Department of Agriculture, Agricultural Research Service, and the Minnesota Pollution Control Agency
The information below has been drawn from sources outside of the University of Wisconsin-Madison Libraries. In most instances, the information will be from sources that have not been peer reviewed by scholarly or research communities. Please report cases in which the information is inaccurate through the Contact Us link below.