APA Citation

Griffiths, M., & O'Callaghan, T. 1. International relations: The key concepts.

Chicago Style Citation

Griffiths, Martin, and Terry( 1956-) O'Callaghan. International Relations: The Key Concepts.

MLA Citation

Griffiths, Martin, and Terry( 1956-) O'Callaghan. International Relations: The Key Concepts.

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