1. Central Statistical Office (1985).Social trends 15 London: HMSO.
2. Chetwynd, J., & Hartnett, O. (1978).The sex role system London: Routledge and Kegan Paul.
3. Cotgrove, S. (1982).Catastrophe or cornucopia? Chichester: Wiley.
4. Crewe, I. (1979, May 12). Who Swung Tory?The Economist.
5. Doise, W. (1978).Groups and individuals: Explanations in social psychology Cambridge: Cambridge University Press.