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By: Holtan, H. N., - Musgrave, G. W. (George Wallace), - United States. Soil Conservation Service. - University of Illinois at Urbana-Champaign. Agricultural Experiment Station.Edition:Publication info: Washington, D.C, U.S. Dept. of Agriculture, Soil Conservation Service, Research, 1947Volume: no.68Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: