High Plains Underground Water Conservation District No. 1 (Tex.). The Cross Section, Volume 13, Number 5, October 1966, periodical, October 1966; (https://texashistory.unt.edu/ark:/67531/metapth1532899/m1/1/: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .