Věstník (West, Tex.), Vol. 58, No. 11, Ed. 1 Wednesday, March 18, 1970, newspaper, March 18, 1970; (https://texashistory.unt.edu/ark:/67531/metapth626965/m1/1/: accessed June 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .