DobsonA.2000. Green Political Thought (3rd edition). London:Routledge.
2.
de GeusM., 1999. Ecological Utopias: Modelling the Sustainable Society. Utrecht:International Books.
3.
de GeusM., 2001. ‘Sustainability, Liberal Democracy, Liberalism’. In BarryJ. and WissenburgM. (eds) Sustaining Liberal Democracy: Ecological Challenges and Opportunities. Basingstoke:Palgrave.
4.
StephensP.H.G.1996. ‘Plural Pluralisms: Towards a More Liberal Green Political Theory’. In Hampsher-MonkI. and StanyerJ. (eds) Contemporary Political Studies 1996, Vol. 1. Oxford:Political Studies Association of the UK.
5.
StephensP.H.G.2001. ‘Green Liberalisms: Nature, Agency and the Good’, Environmental Politics10(3): 1–22.
6.
WissenburgM.1998. Green Liberalism: The Free and the Green Society. London:UCL Press.
7.
WissenburgM.2001. ‘Liberalism is Always Greener on the Other Side of Mill: A Reply to Piers Stephens’, Environmental Politics10(3): 23–42.