APA (7th ed.) Zitazioa

Buzan, B., & Hansen, L. (2009). The evolution of international security studies. Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Buzan, Barry, eta Lene Hansen. The Evolution of International Security Studies. Cambridge, UK ; New York: Cambridge University Press, 2009.

MLA (9th ed.) Zitazioa

Buzan, Barry, eta Lene Hansen. The Evolution of International Security Studies. Cambridge University Press, 2009.