APA (7th ed.) Citation

Cooper, W. J. (1983). Liberty and slavery: Southern politics to 1860. Knopf.

Chicago Style (17th ed.) Citation

Cooper, William J. Liberty and Slavery: Southern Politics to 1860. New York: Knopf, 1983.

MLA (9th ed.) Citation

Cooper, William J. Liberty and Slavery: Southern Politics to 1860. Knopf, 1983.