General Dynamics Corporation. Fort Worth Division.GDFW This Week, Volume 5, Number 36, September 20, 1991,
periodical,
September 20, 1991;
Fort Worth, Texas.
(https://texashistory.unt.edu/ark:/67531/metapth1092063/m1/2/?q=%221997~%22:
accessed July 16, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.;
crediting Lockheed Martin Aeronautics Company, Fort Worth.