APA (7th ed.) Citation
Buzan, B., & Hansen, L. (2009). The evolution of international security studies. Cambridge University Press.
Chicago Style (17th ed.) Citation
Buzan, Barry, and Lene Hansen. The Evolution of International Security Studies. Cambridge, UK ; New York: Cambridge University Press, 2009.
MLA (9th ed.) Citation
Buzan, Barry, and Lene Hansen. The Evolution of International Security Studies. Cambridge University Press, 2009.
Warning: These citations may not always be 100% accurate.