APA (7th ed.) Citation

Nagel, P. C. (1964). One nation indivisible: The union in American thought, 1776-1861. Oxford University Press.

Chicago Style (17th ed.) Citation

Nagel, Paul C. One Nation Indivisible: The Union in American Thought, 1776-1861. New York: Oxford University Press, 1964.

MLA (9th ed.) Citation

Nagel, Paul C. One Nation Indivisible: The Union in American Thought, 1776-1861. Oxford University Press, 1964.