Columbia subject headings:
Harvard subject headings:
Europe--Politics and government--1918-1945.
Russia--Foreign relations--1894-1917.
World War, 1914-1918--Diplomatic history
World War, 1914-1918--Greece
Princeton subject headings:
Europe--Politics and government--1918-1945.
Russia--Foreign relations--1894-1917.
World War, 1914-1918--Diplomatic history.
World War, 1914-1918--Greece.