Věstník (West, Tex.), Vol. 55, No. 43, Ed. 1 Wednesday, October 25, 1967, newspaper, October 25, 1967; (https://texashistory.unt.edu/ark:/67531/metapth625827/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .