Columbia subject headings:
Communism--Soviet Union--History.
Plekhanov, Georgiĭ Valentinovich, 1856-1918.
Russia--History--Revolution, 1905-1907.
Russia--Politics and government--1904-1914.
Harvard subject headings:
Communism--Soviet Union--History
Plekhanov, Georgiĭ Valentinovich, 1856-1918.
Russia--History--Revolution, 1905-1907.
Russia--Politics and government--1904-1914.
Princeton subject headings:
Communism--Soviet Union--History.
Plekhanov, Georgiĭ Valentinovich, 1856-1918.
Russia--History--Revolution, 1905-1907.
Russia--Politics and government--1904-1914.