1. Bennett, James T. and Johnson, Manuel H. (1980) The Political Economy of Federal Government Growth: 1959–1978, Center for Education and Research in Free Enterprise, Texas A. and M. University: Texas.
2. Chapman, Leslie (1979) Your Disobedient Servant, Penguin Special: Harmondsworth.
3. Savas, E. S. (1987) Privatisation: The Key to Better Government, Chatham House Publishers: N.J.