Population characteristics of Jacksonville - Duval area planning region. Prepared by George W. Simons, Jr., and Associates, Planning Consultants. Jacksonville, Fla. : Simons, 196-?
Population Characteristics of Jacksonville - Duval Area Planning Region. 1963. George W. Simons, Jr. Planning Collection. University of North Florida, Thomas G. Carpenter Library Special Collections and Archives. UNF Digital Commons, https://digitalcommons.unf.edu/simonsflorida/22/