APA (7th ed.) Zitazioa
Lopez, G. A. (1989). International relations: Contemporary theory and practice. CQ.
Chicago Style (17th ed.) Zitazioa
Lopez, George A. International Relations: Contemporary Theory and Practice. Washington, D.C.: CQ, 1989.
MLA (9th ed.) Zitazioa
Lopez, George A. International Relations: Contemporary Theory and Practice. CQ, 1989.
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