Věstník (West, Tex.), Vol. 61, No. 42, Ed. 1 Wednesday, October 17, 1973, newspaper, October 17, 1973; (https://texashistory.unt.edu/ark:/67531/metapth626453/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .