Cita APA (7a ed.)

Kupchan, C. A. (2002). The end of the American era: U.S. foreign policy and the geopolitics of the twenty-first century (1a edición.). A. Knopf.

Cita Chicago Style (17a ed.)

Kupchan, Charles A. The End of the American Era: U.S. Foreign Policy and the Geopolitics of the Twenty-first Century. 1a edición. New York: A. Knopf, 2002.

Cita MLA (9a ed.)

Kupchan, Charles A. The End of the American Era: U.S. Foreign Policy and the Geopolitics of the Twenty-first Century. 1a edición. A. Knopf, 2002.