Las Sabinas, Volume 7, Number 1, January 1981, periodical, January 1981; (https://texashistory.unt.edu/ark:/67531/metapth255481/m1/3/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Las Sabinas, Volume 7, Number 1, January 1981, periodical, January 1981; (https://texashistory.unt.edu/ark:/67531/metapth255481/m1/3/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .