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- World War, 1914-1918--Peace (3)
- Wilson, Woodrow, 1856-1924 (2)
- Europe--Foreign relations--United States (1)
- Paris Peace Conference (1919-1920) (1)
- Treaty of Versailles (1919) (1)
- United States--Foreign relations--1913-1921 (1)
- United States--Foreign relations--Europe (1)
- World War, 1914-1918--Diplomatic history (1)