http://www.history.com/topics/bombing-of-hiroshima-and-nagasaki
http://www.history.com/topics/v-j-day
http://en.wikipedia.org/wiki/Debate_over_the_atomic_bombings_of_Hiroshima_and_Nagasaki
Source: Public Papers of the Presidents of the United States: Harry S. Truman, Containing the Public Messages, Speeches and Statements of the President April 12 to December 31, 1945 (Washington D.C.: United States Government Printing Office, 1961) page 212. The full text also was published in the New York Times, August 10, 1945, page 12.
(See Richard S. R. Hubert, "The OWI Saipan Operation," Official Report to US Information Service, Washington, DC 1946.)
