[News Script: Helicopter], script, April 20, 1962; (https://texashistory.unt.edu/ark:/67531/metadc946716/m1/1/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[News Script: Helicopter], script, April 20, 1962; (https://texashistory.unt.edu/ark:/67531/metadc946716/m1/1/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .