Great Britain. Foreign Office & Great Britain. Public Record Office. (1978). General correspondence, political. Public Record Office.
Chicago-viite (17. p.)Great Britain. Foreign Office ja Great Britain. Public Record Office. General Correspondence, Political. London: Public Record Office, 1978.
MLA-viite (8. p.)Great Britain. Foreign Office ja Great Britain. Public Record Office. General Correspondence, Political. Public Record Office, 1978.
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