Columbia subject headings:
Europe--Politics and government--1871-1918.
League of Nations.
World War, 1914-1918--Peace.
Harvard subject headings:
Europe--Politics and government--1871-1918.
League of Nations
World War, 1914-1918--Peace
Princeton subject headings:
Europe--Politics and government--1871-1918.
League of Nations.
World War, 1914-1918--Peace.