Yenne, B. (2013). Hap Arnold: The general who invented the U.S. Air Force. Regnery History.
Chicago-čujuhus (17. p.)Yenne, Bill. Hap Arnold: The General Who Invented the U.S. Air Force. Washington, DC: Regnery History, 2013.
MLA-čujuhus (9. p.)Yenne, Bill. Hap Arnold: The General Who Invented the U.S. Air Force. Regnery History, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.