Cita APA (7a ed.)

Bull, H., & Watson, A. (1984). The Expansion of international society. Clarendon Press ; Oxford University Press.

Cita Chicago Style (17a ed.)

Bull, Hedley, y Adam Watson. The Expansion of International Society. Oxford [Oxfordshire] : New York: Clarendon Press ; Oxford University Press, 1984.

Cita MLA (9a ed.)

Bull, Hedley, y Adam Watson. The Expansion of International Society. Clarendon Press ; Oxford University Press, 1984.