Columbia subject headings:
Citizenship.
Treaty of Versailles
World War, 1914-1918--Territorial questions.
World War, 1914-1918--Treaties.
Harvard subject headings:
World War, 1914-1918--Territorial questions
World War, 1914-1918--Treaties
Princeton subject headings:
Treaties.
World War, 1914-1918--Territorial questions.
World War, 1914-1918--Treaties.