Shen, Richard Tsu-Hsun, authorDirmeyer, R. D., authorUniversity of Wyoming, Agricultural Extension Service, publisher2018-01-092018-01-091959-08https://hdl.handle.net/10217/185580CER59RTS61.August 1959.Includes bibliographical references.Written under the supervision of R.D. Dirmeyer, Jr.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.BentoniteText