Unknown2019-04-152019-04-151964-06EPM-075-01-001http://hdl.handle.net/20.500.11867/16197Single sheet 15.5 x 9 inch. Printed recto and verso. Date est.Issued by the Washington Public Power Supply System. Statistical data given on the project and the members of Washington Public Power Supply System. Black and white photographs throughout, including a labeled photograph showing the parts of the system.Statistical data