Columbia subject headings:
Harvard subject headings:
Agriculture and state--Soviet Union--History.
Krit︠s︡man, L. (Lev), 1890-1938
Peasants--Soviet Union--History
Social classes--Soviet Union--History.
Soviet Union--Rural conditions.
Princeton subject headings:
Agriculture and state--Soviet Union--History.
Krit︠s︡man, L. (Lev), 1890-1938.
Peasants--Soviet Union--History.
Social classes--Soviet Union--History.
Soviet Union--Rural conditions.