Hedstrom, Warren E., authorCorey, A. T. (Arthur Thomas), 1919-, authorDuke, Harold R. (Harold Ray), 1940-, authorColorado State University, publisher2007-01-032007-01-031971http://hdl.handle.net/10217/61493April 1971.Bibliography: pages 28-30.born digitalpapers (documents)engCopyright 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.DrainageText