APA (7th ed.) Zitazioa
Smith, T. W. (1999). History and international relations. Routledge.
Chicago Style (17th ed.) Zitazioa
Smith, Thomas W. History and International Relations. London ; New York: Routledge, 1999.
MLA (9th ed.) Zitazioa
Smith, Thomas W. History and International Relations. Routledge, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.