Cita APA

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

Citación estilo Chicago

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

Cita MLA

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