Burch, W. D.; Bigelow, J. E. & King, L. J. Transuranium Processing Plant Semiannual Report of Production, Status, and Plans for Period Ending June 30, 1969., report, January 1, 1970; (https://digital.library.unt.edu/ark:/67531/metadc870280/m1/1/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .