自由帝国主義
Viscount Grey of Fallodon, Twenty Five Years. 1892-1916 (1925).
R. B. Haldane, An Autobiography (1929).
Robert Rhodes James, Rosebery (1963).
J. A. Spender and Cyril Asquith, Life of Herbert Henry, Lord Oxford and Asquith (1932).
Peter Stansky, Ambitions and Strategies (Oxford: Oxford University Press, 1964).