The Early History of Panna Maria, Texas, report, October 1975; (https://texashistory.unt.edu/ark:/67531/metapth1114543/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
The Early History of Panna Maria, Texas, report, October 1975; (https://texashistory.unt.edu/ark:/67531/metapth1114543/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .