Biodiversity Heritage Library
By "Hays, O. E "
Some records of grassland farming in Wisconsin and Minnesota /
By: Hays, O. E - United States. Soil Conservation Service. - University of Wisconsin--Madison. Agricultural Experiment Station.
Publication info: Washington, D.C. :U.S. Dept. of Agriculture, Soil Conservation Service,1950
Holding Institution: U.S. Department of Agriculture, National Agricultural Library