Columbia subject headings:
Harvard subject headings:
Communists--Soviet Union--Biography
Revolutionaries--Soviet Union--Biography
Russia--Politics and government--1894-1917.
Soviet Union--Politics and government--1917-1936.
Trotsky, Leon, 1879-1940
Princeton subject headings:
Revolutionaries--Soviet Union--Biography.
Soviet Union--Politics and government--1917-1936.
Statesmen--Soviet Union--Biography.
Trotsky, Leon, 1879-1940.