1. Adorno, T.W. 1973. (1966), Negative dialectics. London: Routledge and Kegan Paul.
2. Camus, Albert. 2001. (1947), The plague. London: The Plague.
3. Durkheim, Emile. 1984. (1893), The division of labour in society. London: Macmillan.
4. Graham, Hilary. 2004. Socioeconomic inequalities in health in the UK: Evidence on patterns and determinants. Lancaster: Institute for Health Research.
5. Habermas, Jürgen. 1972. (1968), Knowledge and human interests. London: Heinemann.