Source and copyright
Source: The National Archives of the UK (TNA). Foreign Office, Western Department and Foreign and Commonwealth Office, Western European Department: Registered Files (R and WR Series). WESTERN EUROPEAN UNION. Western European Union Assembly recommendation 360: Strategic Arms Limitations Treaty (SALT) and the British and French nuclear forces. 01/01/1981-31/12/1981, FCO 33/5237 (Former Reference Dep: WRU 83/1).
Copyright: (c) The National Archives of the United Kingdom