Columbia subject headings:
Agriculture--Economic aspects--Russia--History--19th century.
Peasants--Russia--History--19th century.
Harvard subject headings:
Agriculture--Economic aspects--Russia--History--19th century.
Agriculture--Economic aspects--Soviet Union--History--19th century.
Peasants--Russia--History--19th century
Peasants--Soviet Union--History--19th century.
Princeton subject headings:
Agriculture--Economic aspects--Soviet Union--History--19th century.
Peasants--Soviet Union--History--19th century.