Texas Register, Volume 12, Number 53, Pages 2273-2316, July 14, 1987, periodical, July 14, 1987; (https://texashistory.unt.edu/ark:/67531/metapth243897/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .