Markusen, A. 1999. Fuzzy Concepts, Scanty Evidence, Policy Distance: The Case for Rigour and Policy Relevance in Critical Regional Studies. Regional Studies, Vol. 33, No. 9, pp. 869–884.
Memmott, J. 2007. Trends in Personal Income and Passenger Vehicle Miles. Bureau of Transportation Statistics Special Report, SR-006. Research and Innovative Technology Administration, U.S. Department of Transportation, Washington, D.C.
NRC. 1999. Governance and Opportunity in Metropolitan America (A. Altshuler, W. Morrill, H. Wolman, and F. Mitchell, eds.). National Academy Press, Washington, D.C.
NRCS. Various years. National Resources Inventory. U.S. Department of Agriculture, Washington, D.C.
TRB. 2005. Special Report 282: Does the Built Environment Influence Physical Activity? Examining the Evidence. National Academies, Washington, D.C.
U.S. Bureau of the Census. 2008. The 2009 Statistical Abstract. U.S. Department of Commerce, Washington, D.C. www.census.gov/prod/2008pubs/09statab/pop.pdf. Accessed April 8, 2009.
Warner, S. B., Jr. 1978. Streetcar Suburbs: The Process of Growth in Boston, 1870–1900. Harvard University Press, Cambridge, Mass.
Whyte, W. T. (ed.). 1958. Urban Sprawl. In Exploding Metropolis, Doubleday, Garden City, New York.