APA (7th ed.) Citation

Dunning, W. A. (1902). A history of political theories. Macmillan.

Chicago Style (17th ed.) Citation

Dunning, William Archibald. A History of Political Theories. New York: Macmillan, 1902.

MLA (9th ed.) Citation

Dunning, William Archibald. A History of Political Theories. Macmillan, 1902.