APA (7th ed.) Citation

Griffiths. (2007). International relations theory for the twenty-first century: An introduction. Routledge.

Chicago Style (17th ed.) Citation

Griffiths. International Relations Theory for the Twenty-first Century: An Introduction. London: Routledge, 2007.

MLA (8th ed.) Citation

Griffiths. International Relations Theory for the Twenty-first Century: An Introduction. Routledge, 2007.