Las Sabinas, Volume [1], Number 2, April 1975, periodical, April 1975; (https://texashistory.unt.edu/ark:/67531/metapth255300/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Las Sabinas, Volume [1], Number 2, April 1975, periodical, April 1975; (https://texashistory.unt.edu/ark:/67531/metapth255300/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .