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Coster-Mullen, John (2012). Atom Bombs: The Top Secret Inside Story of Little Boy and Fat Man. Waukesha, Wisconsin: J. Coster-Mullen. OCLC298514167.
Moody, Walton S. (1996). Building a Strategic Air Force(PDF). Washington, D.C.: Air Force History and Museums Program. OCLC31900890. Diarsipkan dari asli(PDF) tanggal 2016-11-23. Diakses tanggal 31 August 2013.;
Polmar, Norman (2004). The Enola Gay: The B-29 That Dropped the Atomic Bomb on Hiroshima. Washington, D.C.: Smithsonian National Air and Space Museum. ISBN1-57488-859-5.