[News Script: Hefley hearing], script, February 12, 1968; (https://texashistory.unt.edu/ark:/67531/metadc1794683/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[News Script: Hefley hearing], script, February 12, 1968; (https://texashistory.unt.edu/ark:/67531/metadc1794683/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .