1. Orde, Anne. 1978.Great Britain and International Security 1920–1926, 4London: Royal Historical Society.
2. Ferris, John Robert. 1986. “‘The Evolution of British Strategic Policy, 1919–1926’”. University of London. Ph.D. thesis
3. Templewood, Viscount. 1957.Empire of the Air, 41–2. London: Collins.
4. Montogomery Hyde, H. 1976.British Air Policy Between the Wars, 1918–1939, 57113–14. London: Heinemann.
5. Webster, Charles and Frankland, Noble. 1961.The Strategic Air Offensive Against Germany, 5–20. London: HMSO.