Johnson, John W.2017-01-102017-01-101939http://hdl.handle.net/10919/74076no abstract provided by author67 leaves (two folded), [2]application/pdfen-USIn CopyrightLD5655.V855 1939.J634Sewage disposal plants -- Virginia -- BlacksburgA study of the efficiency of operation of the Virginia Polytechnic Institute sewage disposal plantThesis