APA (7th ed.) Citation

Griffiths, M., O'Callaghan, T., & Roach, S. C. (2014). International relations: The key concepts (Third edition.). Routledge.

Chicago Style (17th ed.) Citation

Griffiths, Martin, Terry O'Callaghan, and Steven C. Roach. International Relations: The Key Concepts. Third edition. Abingdon, Oxon ; New York: Routledge, 2014.

MLA (8th ed.) Citation

Griffiths, Martin, et al. International Relations: The Key Concepts. Third edition. Routledge, 2014.