APA (7th ed.) Citation

Griffiths, M., Roach, S. C., & Solomon, M. S. (2009). Fifty key thinkers in international relations (2nd ed.). Routledge.

Chicago Style (17th ed.) Citation

Griffiths, Martin, Steven C. Roach, and M. Scott Solomon. Fifty Key Thinkers in International Relations. 2nd ed. London ; New York: Routledge, 2009.

MLA (8th ed.) Citation

Griffiths, Martin, et al. Fifty Key Thinkers in International Relations. 2nd ed. Routledge, 2009.