[Yellow Manila Envelope], legal document, 1964; (https://texashistory.unt.edu/ark:/67531/metapth190226/m1/1/: accessed April 28, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Yellow Manila Envelope], legal document, 1964; (https://texashistory.unt.edu/ark:/67531/metapth190226/m1/1/: accessed April 28, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .