1. Root Causes. A Guide to Participation in Public Transport Plans;Abbiss,1979
2. A ladder of citizen participation;Arnstein;Journal of the American Institute of Planners,1971
3. Public participation: Time to bury Skeffington;Ash;The Planner,1979
4. Environmental impact analysis: A review article;Beer;Town Planning Review,1977
5. Planning for People;Broady,1968