Columbia subject headings:
Labor--Russia (Federation)--Tatarstan--Biography.
Tatarstan (Russia)--Biography.
Working class--Russia (Federation)--Tatarstan--Biography.
Harvard subject headings:
Labor--Tatarskai︠a︡ A.S.S.R.--Biography.
Tatarstan (Russia)--Biography.
Working class--Tatarskai︠a︡ A.S.S.R.--Biography.
Princeton subject headings: