Armored Sentinel (Temple, Tex.), Vol. 29, No. 37, Ed. 1 Friday, October 2, 1970, newspaper, October 2, 1970; (https://texashistory.unt.edu/ark:/67531/metapth255085/m1/1/: accessed February 16, 2019), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .