Nine Point Mesa Quadrangle, map, 1918; (https://texashistory.unt.edu/ark:/67531/metapth458670/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Nine Point Mesa Quadrangle, map, 1918; (https://texashistory.unt.edu/ark:/67531/metapth458670/m1/1/: accessed July 8, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .