APA Edition Citation

Callaghan, T. O., & Griffiths, M. (2002). International Relations: The key concepts.

Chicago Edition Citation

Callaghan, Terry O', and Martin Griffiths. International Relations: The Key Concepts. London, Routledge, 2002.

MLA Edition Citation

Callaghan, Terry O', and Martin Griffiths. International Relations: The Key Concepts. 2002.

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