Zellen, B. S. The realist tradition in international relations: The foundation of Western order. Praeger.
Chicago Style (17th ed.) CitationZellen, Barry Scott. The Realist Tradition in International Relations: The Foundation of Western Order. Santa Barbara, CA [u.a.]: Praeger.
MLA (9th ed.) CitationZellen, Barry Scott. The Realist Tradition in International Relations: The Foundation of Western Order. Praeger.
Warning: These citations may not always be 100% accurate.