Columbia subject headings:
Feudalism--Russia (Federation)--Ural Mountains Region.
Peasants--Russia (Federation)--Ural Mountains Region--History.
Harvard subject headings:
Feudalism--Russia (Federation)--Ural Mountains Region.
Peasants--Russia (Federation)--Ural Mountains Region--History.
Princeton subject headings:
Feudalism--Russia (Federation)--Ural Mountains Region.
Peasants--Russia (Federation)--Ural Mountains Region--History.