Ding Dong Quadrangle, map, 1975; (https://texashistory.unt.edu/ark:/67531/metapth457694/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Ding Dong Quadrangle, map, 1975; (https://texashistory.unt.edu/ark:/67531/metapth457694/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .