[Nose assembly of the XH-40], photograph, June 29, 1956; (https://texashistory.unt.edu/ark:/67531/metadc950061/m1/1/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
[Nose assembly of the XH-40], photograph, June 29, 1956; (https://texashistory.unt.edu/ark:/67531/metadc950061/m1/1/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .