Armored Sentinel (Temple, Tex.), Vol. 31, No. 19, Ed. 1 Friday, June 23, 1972, newspaper, June 23, 1972; (https://texashistory.unt.edu/ark:/67531/metapth255165/m1/1/: accessed May 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .