1. James Bryce, International Relations (London, 1922), pp. vii–iii.
2. Sir Alfred Zimmern, The League of Nations and the Rule of Lam (London, 1936)
3. See Philip Noel-Baker, Disarmament (London, 1926)
4. James T. Shotwell, War and Its Renunciation as an Instrument of Policy in the Pact of Paris (New York, 1929)
5. David Davies, The Problem of the Twentieth Century (London, 1930).