[News Script: Engineers], script, June 15, 1973, 6:00 p.m.; (https://texashistory.unt.edu/ark:/67531/metadc1901993/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[News Script: Engineers], script, June 15, 1973, 6:00 p.m.; (https://texashistory.unt.edu/ark:/67531/metadc1901993/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .