Columbia subject headings:
Harvard subject headings:
Industries--Russia (Federation)--Kama River Region--History.
Industries--Russia (Federation)--Vyatka River Region--History.
Kama River Region (Russia)--Genealogy.
Vyatka River Region (Russia)--Genealogy.
Princeton subject headings:
Business enterprises--Russia (Federation)--Kamsko-Vi︠a︡tskiĭ Raĭon--History.
Businessmen--Russia (Federation)--Kamsko-Vi︠a︡tskiĭ Raĭon--Biography.
Kamsko-Vi︠a︡tskiĭ Raĭon (Russia)--Genealogy.