Columbia subject headings:
Agriculture--Russia, Northern--History.
Land tenure--Russia, Northern--History.
Russia, Northern--Rural conditions.
Harvard subject headings:
Agriculture--Russia, Northern--History.
Economics.
Land tenure--Russia, Northern--History.
Russia, Northern--Rural conditions.
Social sciences.
Princeton subject headings:
Agriculture--Russia, Northern--History.
Land tenure--Russia, Northern--History.
Russia, Northern--Rural conditions.