Columbia subject headings:
Harvard subject headings:
Language policy--Russia (Federation)
Language policy--Russia.
Language policy--Soviet Union.
Sociolinguistics--Russia (Federation)--History--21st century.
Sociolinguistics--Russia (Federation)--History.
Sociolinguistics--Russia.
Sociolinguistics--Soviet Union.
Princeton subject headings:
Language and languages--Government policy.--Russia (Federation).
Sociolinguistics--Russia (Federation).--History.
Sociolinguistics--Russia (Federation).--History.--21st century.