Current Study 12, Chapter 4. Portugal, pamphlet, October 1964; (https://texashistory.unt.edu/ark:/67531/metapth1010028/m1/1/: accessed June 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Current Study 12, Chapter 4. Portugal, pamphlet, October 1964; (https://texashistory.unt.edu/ark:/67531/metapth1010028/m1/1/: accessed June 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .