APA (7th ed.) Citation

Griffiths & O'Callaghan. (2008). International relations: The key concepts (2nd ed.). Routledge.

Chicago Style (17th ed.) Citation

Griffiths and O'Callaghan. International Relations: The Key Concepts. 2nd ed. London: Routledge, 2008.

MLA (8th ed.) Citation

Griffiths and O'Callaghan. International Relations: The Key Concepts. 2nd ed. Routledge, 2008.

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