Fawcett, SL. Pacific Northwest Laboratory Monthly Activities Report for June 1966 AEC Division of Reactor Development and Technology Programs, report, June 1, 1966; (https://digital.library.unt.edu/ark:/67531/metadc926790/m1/1/: accessed April 20, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .