Ferguson, D. E. & McBride, J. P. ThO$sub 2$ SLURRY DEVELOPMENT: QUARTERLY REPORT FOR PERIOD ENDING APRIL 30, 1955, report, May 20, 1955; (https://digital.library.unt.edu/ark:/67531/metadc1024611/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .