APA aipamena

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

Chicago Style aipamena

Buzan, Barry, and Lene Hansen. The Evolution of International Security Studies. Cambridge: Cambridge university press, 2009.

MLA aipamena

Buzan, Barry, and Lene Hansen. The Evolution of International Security Studies. Cambridge university press, 2009.