High Plains Underground Water Conservation District No. 1 (Tex.). The Cross Section, Volume 3, Number 4, October 1956, periodical, October 1956; (https://texashistory.unt.edu/ark:/67531/metapth1532779/m1/1/: accessed July 12, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .