Cooper Review (Cooper, Tex.), Vol. 92, No. 38, Ed. 1 Thursday, September 23, 1971, newspaper, September 23, 1971; (https://texashistory.unt.edu/ark:/67531/metapth1541318/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .