1. Ackerman, J. (2006). City parks: Space for the soul. National Geographic, 210, 110–115.
2. Agardy, T., Alder J., et al. (2005a). Coastal systems. In Ecosystems and human well-being, Vol. 1: Current state and trends (ed. M. E. Assessment). Washington, DC: Island Press.
3. Agardy, T., Alder J., et al. (2005b). Coastal systems. In R. Hassan, R. Scholes & N. Ash (Eds.), Ecosystems and human well being: Current state and trends, Vol. 1. Washington, DC: Island Press.
4. Berry, B. J. L. (1990). Urbanization. In B. L. Turner II, W. C. Clark, R. W. Kates, J. F. Richards, J. T. Mathews & W. B. Meyer (Eds.), The earth as transformed by human action: Global and regional changes in the biosphere over the past 300 Years (pp. 103–119). Cambridge: Cambridge University Press.
5. Berry, D. (1978). Effects of urbanization on agricultural activities. Growth and Change, 9, 2–8.