The F-16 production line in Fort Worth, Texas, in the 1980s.
U.S. Department of the Air Force
1986
<a rel="nofollow" class="external text" href="https://books.google.com/books?id=TTN_O6nIFzoC&amp;pg=PA689">Defense Department Authorization and Oversight: Hearings on H.R. 4428, Department of Defense Authorization of Appropriations for Fiscal Year 1987</a>, Page 689