Armored Sentinel (Temple, Tex.), Vol. 30, No. 17, Ed. 1 Friday, May 14, 1971, newspaper, May 14, 1971; (https://texashistory.unt.edu/ark:/67531/metapth255113/m1/8/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .