Salas, Mario Marcel; Greene, Rick & Sanders, John H. [Letter from Mario Marcel Salas to Ed Cheviot - February 19, 1986], letter, February 19, 1986; (https://texashistory.unt.edu/ark:/67531/metapth290930/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .