APA (7th ed.) Zitazioa

Geiger, T. (1988). The future of the international system: The United States and the world. Unwin Hyman.

Chicago Style (17th ed.) Zitazioa

Geiger, Theodore. The Future of the International System: The United States and the World. Boston: Unwin Hyman, 1988.

MLA (9th ed.) Zitazioa

Geiger, Theodore. The Future of the International System: The United States and the World. Unwin Hyman, 1988.