Columbia subject headings:
Agriculture--Economic aspects--Russia--History--16th century.
Land tenure--Russia--History--16th century.
Harvard subject headings:
Agriculture--Economic aspects--Russia (Federation)--History--16th century.
Agriculture--Economic aspects--Russia--History--16th century.
Land tenure--Russia (Federation)--History--16th century.
Land tenure--Russia--History--16th century.
Princeton subject headings:
Agriculture--Economic aspects--Soviet Union.
Feudalism--Soviet Union.
Land tenure--Soviet Union.
Peasants--Soviet Union.