Armored Sentinel (Temple, Tex.), Vol. 31, No. 24, Ed. 1 Friday, July 28, 1972, newspaper, July 28, 1972; (https://texashistory.unt.edu/ark:/67531/metapth255170/m1/1/: accessed May 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .