APA (7th ed.) Citation

Freehling, W. W. (1990). The road to disunion. Oxford University Press.

Chicago Style (17th ed.) Citation

Freehling, William W. The Road to Disunion. New York: Oxford University Press, 1990.

MLA (9th ed.) Citation

Freehling, William W. The Road to Disunion. Oxford University Press, 1990.