Columbia subject headings:
Exiles--Russia (Federation)--Sakha--Congresses.
Political prisoners--Russia (Federation)--Sakha--Congresses.
Revolutionaries--Russia (Federation)--Sakha--Congresses.
Harvard subject headings:
Princeton subject headings:
Political prisoners--Russia (Federation)--Sakha--Congresses.
Revolutionaries--Russia (Federation)--Sakha--Congresses.
Sakha (Russia)--History--Congresses.