The H-SU Brand (Abilene, Tex.), Vol. 56, No. 37, Ed. 1, Tuesday, February 16, 1971, newspaper, February 16, 1971; (https://texashistory.unt.edu/ark:/67531/metapth98779/m1/1/: accessed September 20, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .