Nunnelley, W. A. (1991). Bull Connor. University of Alabama Press.
芝加哥风格引文Nunnelley, William A. Bull Connor. Tuscaloosa: University of Alabama Press, 1991.
MLA引文Nunnelley, William A. Bull Connor. University of Alabama Press, 1991.
警告：这些引文格式不一定是100％准确.