Columbia subject headings:
Harvard subject headings:
Bilingualism--Russia (Federation)--Tatarstan--History--Congresses.
Bilingualism--Russia--History--Congresses.
Bilingualism--Ukraine--History--Congresses.
Language policy--Russia (Federation)--Tatarstan--History--Congresses.
Language policy--Russia--History--Congresses.
Language policy--Ukraine--History--Congresses.
Sociolinguistics--Russia (Federation)--Tatarstan--History--Congresses.
Sociolinguistics--Russia--History--Congresses.
Sociolinguistics--Ukraine--History--Congresses.
Princeton subject headings:
Bilingualism--Russia (Federation)--Tatarstan--Congresses.
Bilingualism--Ukraine--Congresses.