Columbia subject headings:
Political parties--Soviet Union--History.
Press, Communist--Soviet Union--History.
Press, Political party--Soviet Union--History.
Soviet Union--History--Revolution, 1917-1921.
Harvard subject headings:
Political parties--Soviet Union--History
Press, Communist--Soviet Union--History.
Press, Political party--Soviet Union--History.
Soviet Union--History--Revolution, 1917-1921.
Princeton subject headings:
Press, Communist--Soviet Union--History.
Soviet Union--History--Revolution, 1917-1921.