Geiger, T. (1988). The future of the international system: The United States and the world. Unwin Hyman.
Tohutoru Kātū Chicago (17th ed.)Geiger, Theodore. The Future of the International System: The United States and the World. Boston: Unwin Hyman, 1988.
Tohutoro MLA (9th ed.)Geiger, Theodore. The Future of the International System: The United States and the World. Unwin Hyman, 1988.
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