Cita APA (7th ed.)

Nicholson, M. (1998). International relations: A concise introduction. Palgrave.

Cita Chicago (17th ed.)

Nicholson, Michael. International Relations: A Concise Introduction. New York: Palgrave, 1998.

Cita MLA (9th ed.)

Nicholson, Michael. International Relations: A Concise Introduction. Palgrave, 1998.