1. (1990) Green Development, Environment and Sustainability in the Third World, Routledge, London.
2. (1993) Planning for a Sustainable Environment, Earthscan, London.
3. Local authorities and sustainable development
4. Countryside Commission, English Nature and English Heritage (1993) Conservation Issues in Strategic Plans, CoCo, Cheltenham.
5. CPOS (County Planning Officers Society) (1993) Planning for Sustainability, CPOS, Winchester.