Farmer, Edward Jack, authorDepartment of Economics, Colorado State University, publisher2017-05-302017-05-301957-05-01http://hdl.handle.net/10217/181082CER57EJF43.May 1, 1957.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.Groundwater -- BibliographyText