An Overview of the Universal Soil Classification System Development.
Phillip R. Owens, USDA ARS Dale Bumpers Small Farms Research Center, Booneville, AR, Erika Micheli, Department of Soil Science, Szent Istvan University, Godollo, HUNGARY, Jonathan W. Hempel, USDA-NRCS, Lincoln, NE and Vince Lang, Purdue University, West Lafayette, IN