General and Special Laws of The State of Texas Passed By The Third Called Session of the Fifty-Seventh Legislature and the Regular Session of the Fifty-Eighth Legislature, legislative document, 1963; (https://texashistory.unt.edu/ark:/67531/metapth221759/m1/322/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .