Source et copyright
Source: Parliamentary Debates. House of Commons. Official Report. First session of the Forty-First Parliament of the United Kingdom of Great Britain and Northern Ireland. Fifth year of the reign of her Majesty Queen Elizabeth II. dir. de publ. Hansard. 1955-56, n° 555; fifth series. London: Her Majesty's Stationery Office. "Common Market, Western Europe", p. 1667-1680.
Copyright: Crown copyright is reproduced with the permission of the Controller of Her Majesty's Stationery Office and the Queen's Printer for Scotland