Jamison, V.C., D.D. Smith, and J.F. Thornton. Soil and water research on a claypan soil; a compilation of results of research conducted at Midwest Claypan Experiment Farm, McCredie, Mo., Prepared by the U.S. Agricultural Research Service in cooperation with Missouri Agricultural Experiment Station. Washington, U.S. Government Printing Office, 1937-1962, 1968, Box: 1, Item: A-83. Hans A. Einstein Sediment Transport collection, MS-76/12. Water Resources Collections & Archives. https://public.ucrlib.aspace.cdlib.org/repositories/5/archival_objects/579755 Accessed April 14, 2025.