ebrary, Inc, United States Capitol Historical Society, Finkelman, P., & Kennon, D. R. (2012). Congress and the crisis of the 1850s. Published for the United States Capitol Historical Society by Ohio University Press.
芝加哥风格引文ebrary, Inc, United States Capitol Historical Society, Paul Finkelman, 与 Donald R. Kennon. Congress and the Crisis of the 1850s. Athens: Published for the United States Capitol Historical Society by Ohio University Press, 2012.
MLA引文ebrary, Inc, et al. Congress and the Crisis of the 1850s. Published for the United States Capitol Historical Society by Ohio University Press, 2012.
警告：这些引文格式不一定是100％准确.