United States. President (1945-1953 : Truman), Harry S. Truman (1963). “Harry S. Truman: Containing the Public Messages, Speeches, and Statements of the President, 1945-53”
George Canning (1842). “Select Speeches of the Right Honourable George Canning: With a Preliminary Biographical Sketch, and an Appendix, of Extracts from His Writings and Speeches”, p.533