Columbia subject headings:
Ethnology--Russia (Federation)--Udmurtii︠a︡.
Tatars--Russia (Federation)--Udmurtii︠a︡--History.
Tatars--Russia (Federation)--Udmurtii︠a︡--Social life and customs.
Udmurtii︠a︡ (Russia)--History.
Harvard subject headings:
Tatars--Social life and customs.
Princeton subject headings: