1Brennan, Geoffrey & Buchanan, James M. (1985), The Reason of Rules: Constitutional Political Economy (London: Cambridge University Press).
2DworkIn, Ronald (1977), Taking Rights Seriously. London: Duckworth.
3Hardin, Russell (1980)'The Emergence of Norms', Ethics, 90, pp. 575-87.
4Hardin, Russell. (1988), Morality within the Limits of Reason (Chicago: the University of Chicago Press).
5McCormick, John P (1993), 'Addressing the Political Exception: Machiavelli's "Accidents" and the Mixed Regime,' American Political Science Review, Vol. 87, No. 4, pp. 888-90.
6Nicoletti, Michele (1987)'A Review of Carl Schmitt nella Stampa Pericxtica Italiana (1973-1986)', Tolos, No. 72, pp. 217-24.
7Pye, Lucian W. (1968),The Spirit of Chinese Polities A Psychocultural study of the Authority Crisis in Political Development (Cambridge, Massachusetts: The M. I. T. Press).
8Rawls, John (1964)'Two Concepts of Rules', Philosophical Review, Vol. 55, pp. 3-32.
9Rawls, John (1971), A Theory of Justice (Oxford: Clarendon).
10Sarnples, John (1987) 'A Review of Political Theology, and The Crisis of Parliamentary Democracy', Tolos, No. 72, pp. 205-14.