Columbia subject headings:
Romanies--Russia (Federation)--Permʹ--History.
Romanies--Russia (Federation)--Permʹ--Social life and customs.
Harvard subject headings:
Romanies--Russia (Federation)--Permʹ--History.
Romanies--Russia (Federation)--Permʹ--Social life and customs.
Princeton subject headings:
Romanies--Russia (Federation)--Permʹ--History.
Romanies--Russia (Federation)--Permʹ--Social life and customs.