Quelle und Copyright
Quelle: Negotiations for a European Free Trade Area, Documents relating to the negotiations from July, 1956, to December,1958. London: Her Majesty's Stationery Office, 1959. 237 p. (Cmnd. 641).
Copyright: Crown copyright is reproduced with the permission of the Controller of Her Majesty's Stationery Office and the Queen's Printer for Scotland