United States Government, The United States Strategic Bombing Survey: Physical Damage Division, The Effects of the Atomic Bomb on Hiroshima, Japan, Volume I, May 1947, p.42 (2011.23.1)
United States Government, The United States Strategic Bombing Survey: Physical Damage Division, The Effects of the Atomic Bomb on Hiroshima, Japan, Volume II, May 1947, p.145 (2011.23.2)
United States Government, The United States Strategic Bombing Survey: Physical Damage Division, The Effects of the Atomic Bomb on Hiroshima, Japan, Volume II, May 1947, p.147 (2011.23.2)
United States Government, The United States Strategic Bombing Survey: Physical Damage Division, The Effects of the Atomic Bomb on Hiroshima, Japan, Volume II, May 1947, p.148 (2011.23.2)