Tony Kushner (1995). “Thinking About the Longstanding Problems of Virtue and Happiness: Essays, A Play, Two Poems and a Prayer”, p.40, Theatre Communications Group
United States. President (1945-1953 : Truman), Harry S. Truman (1961). “Harry S. Truman: Containing the Public Messages, Speeches, and Statements of the President, 1945-53”