McWhorter, David B., authorColorado State University, publisher2007-01-032007-01-031971http://hdl.handle.net/10217/61494May 1971.Bibliography: pages 31-32.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.SeepageFilters and filtrationText