The improbable triumvirate : John F. Kennedy, Pope John, Nikita Khrushchev. - Cousins, Norman (New York : W. W. Norton, 1972)
Keywords: Kennedy, John F. (John Fitzgerald), 1917 -- 1963; John XXIII, Pope, 1881 -- 1963.; Khrushchev, Nikita Sergeevich, 1894 -- 1971.; United States. Treaties, etc., 1961 -- 1963 (Kennedy) Treaty banning nuclear weapon tests in the atmosphere, in outer space and under water; World politics -- 1955 -- 1965.