Armored Sentinel (Temple, Tex.), Vol. 31, No. 32, Ed. 1 Friday, September 22, 1972, newspaper, September 22, 1972; (https://texashistory.unt.edu/ark:/67531/metapth255178/m1/1/: accessed May 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .