APA (7th ed.) Citation

Great Britain. Foreign Office & Great Britain. Public Record Office. (1961). Embassy and consular archives: Letterbooks, 1876-1879. Public Record Office.

Chicago Style (17th ed.) Citation

Great Britain. Foreign Office and Great Britain. Public Record Office. Embassy and Consular Archives: Letterbooks, 1876-1879. London: Public Record Office, 1961.

MLA (8th ed.) Citation

Great Britain. Foreign Office and Great Britain. Public Record Office. Embassy and Consular Archives: Letterbooks, 1876-1879. Public Record Office, 1961.