Gw mau tau Catatan dari Ralph Austin Bard

Alice Kimball Smith, "Behind the decision to use the atomic bomb: Chicago 1944-1945", Bulletin of the Atomic Scientists, September 1958, pp. 288–312

U.S. News and World Report, "Was A-Bomb on Japan a mistake?", August 15, 1960; pp. 62–76, 115-116.