1. World Bank (1997) Expanding the Measure of Wealth: Indicators of Environmentally Sustainable Development, Washington, DC: World Bank
2. Williams, Bernard (1973) ‘A Critique of Utilitarianism’, in J. J. C. Smart and Bernard Williams, Utilitarianism: For and Against, Cambridge University Press, pp. 75–150
3. Tyme, John (1978) Motorways versus Democracy, London: Macmillan
4. Norway's institutional response to sustainable development
5. Zald, Mayer and McCarthy, John (1987) Social Movements in an Organizational Society, New Brunswick: Transaction