'Viking Press', correspondence with Harper and Brothers (later Harper and Row), Publishers, New York , 1962-1972, and The Viking Press, 1974-1981, relating to American editions of Sampson's publications, including Anatomy of Britain, 1962-1963, The New Europeans, 1964-1968 The Seven Sisters, 1974-1975, The Arms Bazaar, 1976-1977, and The Money Lenders, 1980-1981, 1962-1981