Source et copyright
Source: Great Britain. Lord President of the Council. Referendum on United Kingdom membership of the European Community, Presented to Parliament by the Lord President of the Council by Command of Her Majesty. London: Her Majesty's Stationery Office, Febuary 1975. 17 p. ISBN 0 10 159250 7.
Copyright: Crown copyright is reproduced with the permission of the Controller of Her Majesty's Stationery Office and the Queen's Printer for Scotland