Arthur B. Laffer, Stephen Moore, Jonathan Williams: Rich States, Poor States – ALEC-Laffer State Economic Competitiveness Index. American Legislative Exchange Council, 2013, online
Campbell Gibson, Kay Jung: Historical census statistics on population totals by race, 1790 to 1990, and by Hispanic origin, 1970 to 1990, for the United States, regions, divisions, and states. In: U.S. Census Bureau (Hrsg.): Population Division Working Paper No. 56. Washington, DC, Table 39. Mississippi - Race and Hispanic Origin: 1800 to 1990 (englisch, census.gov [PDF]).
