Simpson, Brett C.; Corbin, Rob A.; Anderson, Michael J. & Kincaid, Charles T. Hanford Soil Inventory Model (SIM) Rev. 1 Users Guide, report, September 25, 2006; (https://digital.library.unt.edu/ark:/67531/metadc878674/m1/1/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .