"Alabama and CBER: 75 Years of Change"(PDF). Alabama Business. Center for Business and Economic Research, Culverhouse College of Commerce, The University of Alabama. april 2005. Hentet 2006-09-23.
web.archive.org
"AL-Alabama". Landscapes and History by state. StateMaster.com. Arkiveret fra originalen 3. maj 2006. Hentet 2006-09-23.
"The Black Belt". Southern Spaces Internet Journal. Emory University. 2004-04-19. Arkiveret fra originalen 4. november 2006. Hentet 2006-09-23.