High Plains Underground Water Conservation District No. 1 (Tex.). The Cross Section, Volume 34, Number 2, February 1988, periodical, February 1988; (https://texashistory.unt.edu/ark:/67531/metapth1533155/m1/4/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .