Published sources
Haldeman, H.R., with Joseph DiMona. The Ends of Power. New York: Times Books, 1978.
Helms, Richard, with William Hood. A Look Over My Shoulder. New York: Random House, 2003.
Kissinger, Henry A. White House Years. Boston: Little, Brown, 1979.
Nixon, Richard M. RN: The Memoirs of Richard Nixon. New York: Grosset & Dunlap, 1978.
United States. Department of State. Bulletin, 1969–1972.
United States. National Archives and Records Administration. Public Papers of the Presidents of the United States: Richard Nixon, 1969, 1970, 1971, 1972. Washington: Government Printing Office, 1970, 1971, 1972, 1973.