[Helicopter strapped to a trailer], photograph, [1939..1989]; (https://texashistory.unt.edu/ark:/67531/metadc801035/m1/1/: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
[Helicopter strapped to a trailer], photograph, [1939..1989]; (https://texashistory.unt.edu/ark:/67531/metadc801035/m1/1/: accessed July 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .