Columbia subject headings:
Europe--Politics and government--1871-1918.
Russia--History--Nicholas II, 1894-1917.
Soviet Union--History--Revolution, 1917-1921--Causes.
Triple Entente, 1907.
Harvard subject headings:
Europe--Politics and government--1871-1918.
Russia--History--Nicholas II, 1894-1917.
Soviet Union--History--Revolution, 1917-1921--Causes.
Triple Entente, 1907.
Princeton subject headings:
Europe--Politics and government--1871-1918.
Russia--History--Nicholas II, 1894-1917.
Soviet Union--History--Revolution, 1917-1921--Causes.
Triple Entente, 1907.