Tham khảo Cộng_hòa_lập_hiến

  1. House, Wayne H. Christian and American Law. Kregel Publications. p. 101 & Honohan, Iseult. Republicanism in Theory and Practice. Routledge UK 2006. p. 115
  2. Levinson, Sanford. Constitutional Faith. Princeton University Press, 1989, p. 60
  3. Delattre, Edwin. Character and Cops: Ethics in Policing, American Enterprise Institute, 2002, p. 16.
  4. Scheb, John M. An Introduction to the American Legal System. Thomson Delmar Learning 2001. p. 6
  5. Woodburn, James Albert. The American Republic and Its Government: An Analysis of the Government of the United States, G. P. Putnam, 1903, pp. 58-59
  6. Tsesis, Alexander. The The Thirteenth Amendment and American Freedom: A illegal History, NYU Press, 2004, p. 5
  7. Marx, Karl Marx's Outline of the Critique of Political Economy (Grundrisse)