Bridges, Sir Edward (1952), 'Professional Standards: The Civil Servant', BBC.
2.
Bridges, Sir Edward (1954), 'The Civil Service Tradition', BBC
3.
Bridges, Lord (1964), 'The Relationship between Ministers and the Permanent Departmental Head' The W. Clifford Clark Memorial Lectures
4.
Fisher, Sir Warren and Colleagues (1928), Report on certain statements affecting civil servants (the Francs Report)
5.
Green, T.H., (1931), Lectures on the Principles of Political ObligationLongman Green and Co.
6.
O'Toole, Barry J. (1990), 'T.H. Green and the Ethics of Senior Officials in British Central Government' in Public Administration Volume 68, No. 3, pp 337-353
7.
Pinto-Duschinsky (1985), 'Corruption' in The Encyclopedia of the Social Sciences
8.
Plato (1941) The Republic of Plato Translated with an Introduction and Notes by F.W. Cornford (Oxford University Press)
9.
Rousseau, Jean-Jacques (1911), Emile Translated by Barbera Foxley ( J.M. Dent and Sons)
10.
Rousseau, (1913), The Social Contract and Discourses with an introduction by G.D.H. Cole (J.M. Dent and Sons)
11.
Rousseau (1953) The Confessions of Jean-Jacques Rousseau (1781) Translated by J.M. Cohen (Penguin).