Columbia subject headings:
Peasants--Soviet Union.
Soviet Union--History--Revolution, 1917-1921.
Working class--Soviet Union.
Harvard subject headings:
Peasants--Soviet Union
Soviet Union--History--Revolution, 1917-1921.
Working class--Soviet Union
Princeton subject headings:
Peasants--Soviet Union.
Soviet Union--History--Revolution, 1917-1921.
Working class--Soviet Union.