APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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