1. F. Kostoff, The City Shaped Urban Patterns and Meaning Through History, (Thomas and Hudson, London, 1991) pp. 352.
2. P. Newman and J. Kenworthy, Sustainability and cities: overcoming automobile dependence. (Island Press Washington, DC, 1999).
3. M. O. London, Making London a walkable city The Walking Plan for London, (2004).
4. D. Burden, Walkable Community Criteria. Walkable Communities, Inc. (1992).
5. Designing the Walkable City