APA (7th ed.) Zitazioa

Herring, G. C. (2008). From colony to superpower: U.S. foreign relations since 1776. Oxford University Press.

Chicago Style (17th ed.) Zitazioa

Herring, George C. From Colony to Superpower: U.S. Foreign Relations Since 1776. New York: Oxford University Press, 2008.

MLA (9th ed.) Zitazioa

Herring, George C. From Colony to Superpower: U.S. Foreign Relations Since 1776. Oxford University Press, 2008.