APA (7th ed.) Citation

Booth, K., & Erskine, T. (2016). International relations theory today (Second edition.). Polity Press.

Chicago Style (17th ed.) Citation

Booth, Ken, and Toni Erskine. International Relations Theory Today. Second edition. Cambridge, UK: Polity Press, 2016.

MLA (9th ed.) Citation

Booth, Ken, and Toni Erskine. International Relations Theory Today. Second edition. Polity Press, 2016.

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