APA (7th ed.) Citation

Bremmer, I. (2015). Superpower: Three choices for America's role in the world. Portfolio Penguin.

Chicago Style (17th ed.) Citation

Bremmer, Ian. Superpower: Three Choices for America's Role in the World. New York: Portfolio Penguin, 2015.

MLA (9th ed.) Citation

Bremmer, Ian. Superpower: Three Choices for America's Role in the World. Portfolio Penguin, 2015.