Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki. Junio 19 de 1946. 2. Hiroshima.Arxivat 2018-10-19 a Wayback Machine., pàgina 22 de 51.
Harry S. Truman Library & Museum. U. S. Strategic Bombing Survey: The Effects of the Atomic Bombings of Hiroshima and Nagasaki. Junio 19 de 1946. 2. Hiroshima.Arxivat 2018-10-19 a Wayback Machine., pàgina 22 de 51.