Jimmy Earl Carter “Public Papers of the Presidents of the United States, Jimmy Carter, 1978, Book 1: January 1 to June 30, 1978”, Government Printing Office
Letter to three students (October 1967) as translated in "Solzhenitsyn: A Documentary Record" edited by Leopold Labedz, "The Struggle Intensifies", 1970.
Edmund Burke (1790). “Reflections on the Revolution in France: And on the Proceedings in Certain Societies in London Relative to that Event. In a Letter Intended to Have Been Sent to a Gentleman in Paris”, p.230