APA (7th ed.) Citation

Ferguson, N. (2005). Colossus: The rise and fall of the American empire. Penguin Press.

Chicago Style (17th ed.) Citation

Ferguson, Niall. Colossus: The Rise and Fall of the American Empire. New York: Penguin Press, 2005.

MLA (9th ed.) Citation

Ferguson, Niall. Colossus: The Rise and Fall of the American Empire. Penguin Press, 2005.