APA (7th ed.) Citation

Hoffmann, S., & Gergen, D. America's role in a changing world. Brassey's.

Chicago Style (17th ed.) Citation

Hoffmann, Stanley, and David Gergen. America's Role in a Changing World. [Oxford]: Brassey's.

MLA (8th ed.) Citation

Hoffmann, Stanley, and David Gergen. America's Role in a Changing World. Brassey's.