Evans, N. A., authorStephens, Larry D., authorColorado State University, publisher2018-01-092018-01-091959https://hdl.handle.net/10217/185571CER59NAE65.For presentation at the 1959 Winter Meeting, American Society of Agricultural Engineers, Chicago, Illinois, December 15-18, 1959.Includes bibliographical references.reportsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.DrainageDrain-tilesText