Wilkinson , P. (2007). International relation: A Very short introduction. U. Pr..
Cita Chicago (17th ed.)Wilkinson , Paul. International Relation: A Very Short Introduction. Oxford: U. Pr., 2007.
Cita MLA (9th ed.)Wilkinson , Paul. International Relation: A Very Short Introduction. U. Pr., 2007.
Atenció: Aquestes cites poden no estar 100% correctes.