Columbia subject headings:
Finno-Ugrians--Russia (Federation)--History--20th century.
Harvard subject headings:
Ethnology--Russia, Northern
Finno-Ugrians--Russia (Federation)
Finno-Ugrians--Russia (Federation)--History.
Finno-Ugrians--Social life and customs.
Minorities--Russia, Northern.
Social change--Russia, Northern.
Princeton subject headings: