Cita APA (7th ed.)

Dukes, P. (2000). The superpowers: A short history. Routledge.

Cita Chicago (17th ed.)

Dukes, Paul. The Superpowers: A Short History. London ; New York: Routledge, 2000.

Cita MLA (9th ed.)

Dukes, Paul. The Superpowers: A Short History. Routledge, 2000.