Thorfinnson, M.A.2015-10-102015-10-101946-06M.A. Thorfinnson. Contour Strip Cropping. University of Minnesota Extension Service. Extension Folder 108. June 1946.https://hdl.handle.net/11299/174657This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enNewsletter or Bulletin