Dyfyniad APA

Burchill, S. (2013). Theories of international relations (5th ed.). Palgrave Macmillan.

Dyfyniad Arddull Chicago

Burchill, Scott. Theories of International Relations. 5th ed. New York: Palgrave Macmillan, 2013.

Dyfyniad MLA

Burchill, Scott. Theories of International Relations. 5th ed. Palgrave Macmillan, 2013.

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