Congressional Budget Office. Trends in the Distribution of Household Income Between 1979 and 2007. October 2011.

Frey, William H. August 2011. The New Metro Minority Map: Regional Shifts in Hispanics, Asians, and Blacks from Census 2010. Washington, DC: Brookings Institution State of Metropolitan America series.

Glaeser, Edward, and Jacob Vigdor. The End of the Segregated Century: Racial Separation in America’s Neighborhoods, 1890-2010. Manhattan Institute (January 2012). Civic Report 66.

Logan, John R., and Brian J. Stults. March 2011. The Persistence of Segregation in the Metropolis: New Findings from the 2010 Census. Project US2010 series.

Massey, Douglas S., and Mary J. Fischer. “The Geography of Inequality in the United States, 1950-2000,” Brookings-Wharton Papers on Urban Affairs (2003): 1-40.

Murray, Charles. Coming Apart: The State of White America, 1960-2010. (New York: Crown Forum, 2012).

Pew Research Center. Social & Demographic Trends project. Inside the Middle Class: Bad Times Hit the Good Life. April 2008.

Siegel, Jacob S., and David A. Swanson, editors. 2008. The Methods and Materials of Demography, 2nd edition. United Kingdom: Emerald Group.