High Plains Underground Water Conservation District No. 1 (Tex.). The Cross Section, Volume 33, Number 1, January 1987, periodical, January 1987; (https://texashistory.unt.edu/ark:/67531/metapth1533142/m1/1/: accessed July 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .