ZIEGLER, D. W. War, peace, and international politics. -- 2nd ed. Little.
Lua i Stíl Chicago (17ú heag.)ZIEGLER, David W. War, Peace, and International Politics. -- 2nd Ed. Boston: Little.
Lua MLA (9ú heag.)ZIEGLER, David W. War, Peace, and International Politics. -- 2nd Ed. Little.
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