United States. President (1981-1989 : Reagan), United States. President (1981-1989 : Reagan)., Ronald Reagan, United States. Office of the Federal Register (1983). “Ronald Reagan”
Richard M. Nixon's address to the nation on the situation in Southeast Asia (April 30, 1970) as quoted in "Public Papers of the Presidents of the United States: Richard Nixon, 1970" by the U.S. Government Printing Office (p. 410), 1971.