توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

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.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

ebrary, Inc, United States Capitol Historical Society, Paul Finkelman, و Donald R. Kennon. Congress and the Crisis of the 1850s. Athens: Published for the United States Capitol Historical Society by Ohio University Press, 2012.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

ebrary, Inc, et al. Congress and the Crisis of the 1850s. Published for the United States Capitol Historical Society by Ohio University Press, 2012.