Journal Supplement, Text of Senate Bill No. 11, Regular Session as Amended by Senate Bill No. 7, First Called Session, Sixty-Second Legislature, State of Texas, 1971, legislative document, 1971; (https://texashistory.unt.edu/ark:/67531/metapth307677/m1/73/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .