Sanchez, Moses M. [Memorandum from Moses M. Sanchez to LULAC members - 1958-01-30], letter, January 30, 1958; (https://texashistory.unt.edu/ark:/67531/metapth250581/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .