[Resume - Ralph D. Roberts, March 20, 1973], text, March 20, 1973; (https://texashistory.unt.edu/ark:/67531/metapth1211429/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Resume - Ralph D. Roberts, March 20, 1973], text, March 20, 1973; (https://texashistory.unt.edu/ark:/67531/metapth1211429/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .