Columbia subject headings:
Collectivization of agriculture--Social aspects--Soviet Union--Congresses.
Peasants--Soviet Union--History--Congresses.
Rural population--Soviet Union--History--Congresses.
Soviet Union--Rural conditions--Congresses.
Harvard subject headings:
Collectivization of agriculture--Social aspects--Soviet Union--Congresses.
Peasants--Soviet Union--History--Congresses.
Rural population--Soviet Union--History--Congresses.
Soviet Union--Rural conditions--Congresses.
Princeton subject headings:
Peasants--Soviet Union--History.