APA (7th ed.) Citation

Terriff, T., Croft, S., James, L., & Morgan, P. (1999). Security studies today. Polity Press.

Chicago Style (17th ed.) Citation

Terriff, Terry, Stuart Croft, Lucy James, and Patrick Morgan. Security Studies Today. Cambridge: Polity Press, 1999.

MLA (9th ed.) Citation

Terriff, Terry, et al. Security Studies Today. Polity Press, 1999.