General Dynamics Corporation. Convair Division. General Dynamics News, Volume 23, Number 7, April 15, 1970, periodical, April 15, 1970; (https://texashistory.unt.edu/ark:/67531/metapth1168170/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .