Wallace, Daniel B. "Ephesians:Introduction, Argument, and Outline." Web: [1] 1 January 2010
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E.N. Elliott, ed. Cotton is king, and pro-slavery arguments comprising the writings of Hammond, Harper, Christy, Stringfellow, Hodge, Bledsoe, and Cartwright, on this important subject. Augusta, Ga. : Pritchard, Abbott & Loomis, 1860. Christy, David; Bledsoe, Albert Taylor; Stringfellow, Thornton; Harper, Robert Goodloe; Hammond, James Henry; Cartwright, Samuel Adolphus; Hodge, Charles (1860). 《Cotton is King – Google Books》. 2009년 3월 13일에 확인함.