Source et copyright
Source: Parliamentary Debates. House of Commons. Official Report. Second session of the Forty-seventh Parliament of the United Kingdom of Great Britain and Northern Ireland. Twenty-fifth year of the reign of her Majesty Queen Elizabeth II. Dir. of publ. Hansard. 1975-1976, No 915; fifth series. London: Her Majesty's Stationery Office. "European Parliament (direct elections)", p. 110-133.
Copyright: Crown copyright is reproduced with the permission of the Controller of Her Majesty's Stationery Office and the Queen's Printer for Scotland