APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.