Columbia subject headings:
Europe--History--1918-1945--Congresses.
World War, 1914-1918--Treaties--Congresses.
Harvard subject headings:
Treaty of Bucharest
Treaty of Versailles
World War, 1914-1918--Treaties
Princeton subject headings:
Geopolitics--Europe--History--Congresses.
World War, 1914-1918--Treaties--Congresses.