The study of nineteenth century diplomacy, G. Bell and Sons, 1915.
The Congress of Vienna, 1814-1815, Milford, 1918.
The foreign policy of Castlereagh, 1812-1815: Britain and the reconstruction of Europe, G. Bell, 1925.
The League of Nations in theory and practice, Allen & Unwin, 1933.
The foreign policy of Palmerston, 1830-1841: Britain, the liberal movement and the Eastern question, 2 vols., G. Bell, 1951.
The art and practice of diplomacy, Chatto & Windus, 1961.
Palmerston, Metternich, and the European system, 1830-1841, Haskell House, 1975.
編著
British diplomacy, 1813-1815: select documents dealing with the reconstruction of Europe, edited by C. K. Webster, Bell, 1921.
Britain and the independence of Latin America, 1812-1830: select documents from the Foreign Office Archives, edited by C. K. Webster, Oxford University Press, 1938.
