Griffiths, M. (1999). Fifty key thinkers in international relations. Routledge.
Chicago Style (17th ed.) ZitazioaGriffiths, Martin. Fifty Key Thinkers in International Relations. London: Routledge, 1999.
MLA (9th ed.) ZitazioaGriffiths, Martin. Fifty Key Thinkers in International Relations. Routledge, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.