Big Spring, map, 1976; (https://texashistory.unt.edu/ark:/67531/metapth449108/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Big Spring, map, 1976; (https://texashistory.unt.edu/ark:/67531/metapth449108/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .