Caldwell, John C., et al. Demographic Transition Theory. Springer, 2006.
Flagg, Anna. "The Myth of the Criminal Immigrant." The New York Times, 30 Mar. 2018, www.nytimes.com/interactive/2018/03/30/upshot/crime-immigration-myth.html.
Friedman, Thomas. Hot, Flat, and Crowded. Farrar, Straus and Giroux, 2008.
Park, Robert E., et al. The City: Suggestions for Investigation of Human Behavior in the Urban Environment. U of Chicago P, 2010.
Wirth, Louis. "Urbanism as a Way of Life." American Journal of Sociology, vol. 44, no. 1, 1938, pp. 1–24., doi:10.1086/217913.