Cita APA (7th ed.)

Buzan, B., & Little, R. (2000). International systems in world history: Remaking the study of international relations. Oxford University Press.

Cita Chicago (17th ed.)

Buzan, Barry, i Richard Little. International Systems in World History: Remaking the Study of International Relations. Oxford: Oxford University Press, 2000.

Cita MLA (9th ed.)

Buzan, Barry, i Richard Little. International Systems in World History: Remaking the Study of International Relations. Oxford University Press, 2000.