Great Britain. Foreign Office & Great Britain. Public Record Office. (1978). General correspondence, political. Public Record Office.
Chicago-referens (17:e uppl.)Great Britain. Foreign Office och Great Britain. Public Record Office. General Correspondence, Political. London: Public Record Office, 1978.
MLA-referens (8:e uppl.)Great Britain. Foreign Office och Great Britain. Public Record Office. General Correspondence, Political. Public Record Office, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.