Texas Register, Volume 12, Number 70, Pages 3237-3293, September 18, 1987, periodical, September 18, 1987; (https://texashistory.unt.edu/ark:/67531/metapth243914/m1/35/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .