«Truman Reports, "It Is an Atomic Bomb"» (en anglès). Arxivat de l'original el 2012-11-20. [Consulta: 5 juny 2009]. «If they do not now accept our terms, they may expect a rain of ruin from the air, the like of which has never been seen on this earth.»
Rezelman, David; F.G. Gosling and Terrence R. Fehner. «The atomic bombing of Nagasaki». The Manhattan Project: An Interactive History. U.S. Department of Energy, 2000. Arxivat de l'original el 2010-11-22. [Consulta: 18 setembre 2007].
Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki, 19 de juny 1946. 2. Hiroshima.Arxivat 2008-11-13 a Wayback Machine., pàgina 14 de 51.
Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki, 19 de juny de 1946. 2. Hiroshima.Arxivat 2018-05-03 a Wayback Machine., pàgina 11 de 51.
Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki. 19 de juny del 1946. Effort and Results.Arxivat 2018-10-19 a Wayback Machine., pàgina 42 de 51.
Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki, 19 de juny del 1946. 2. Hiroshima.Arxivat 2019-06-27 a Wayback Machine., pàgina 12 de 51.
Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki, 19 de juny 1946. 2. Hiroshima.Arxivat 2008-11-13 a Wayback Machine., pàgina 14 de 51.
Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki, 19 de juny de 1946. 2. Hiroshima.Arxivat 2018-05-03 a Wayback Machine., pàgina 11 de 51.
Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki. 19 de juny del 1946. Effort and Results.Arxivat 2018-10-19 a Wayback Machine., pàgina 42 de 51.
Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki, 19 de juny del 1946. 2. Hiroshima.Arxivat 2019-06-27 a Wayback Machine., pàgina 12 de 51.
«Truman Reports, "It Is an Atomic Bomb"» (en anglès). Arxivat de l'original el 2012-11-20. [Consulta: 5 juny 2009]. «If they do not now accept our terms, they may expect a rain of ruin from the air, the like of which has never been seen on this earth.»
Rezelman, David; F.G. Gosling and Terrence R. Fehner. «The atomic bombing of Nagasaki». The Manhattan Project: An Interactive History. U.S. Department of Energy, 2000. Arxivat de l'original el 2010-11-22. [Consulta: 18 setembre 2007].