Columbia subject headings:
Miners--Russia (Federation)--Ural Mountains Region--History.
Ural Mountains Region (Russia)--Social conditions.
Ural Mountains Region (Russia)--Social life and customs.
Ural Mountains Region (Russia)--Statistics, Vital.
Working class families--Russia (Federation)--Ural Mountains Region--History.
Harvard subject headings:
Families--Russia (Federation)--Ural Mountains Region--History.
Princeton subject headings:
Mines and mineral resources--Russia (Federation)--Ural Mountains Region.
Working class--Russia (Federation)--Ural Mountains Region.