Arendt, H. (1963) Between Past and FutureNew York: World.
2.
Austin, J.L. (1964) Sense and Sensibilia. New York : Oxford Univ. Press.
3.
Dahl, R. and C.E. Lindbloom (1953) Politics, Economics and Welfare. New York: Harper & Row.
4.
Friedman, R.B. (1973) "On the concept of authority in political philosophy ," in R. E. Flathman (ed.) Concepts in Social and Political Philosophy. New York: Macmillan.