Columbia subject headings:
Caucasus--History--Congresses.
Caucasus--Relations--Russia (Federation)--Congresses.
Caucasus--Relations--Russia--Congresses.
Caucasus--Relations--Soviet Union--Congresses.
Russia (Federation)--Relations--Caucasus--Congresses.
Russia--Relations--Caucasus--Congresses.
Soviet Union--Relations--Caucasus--Congresses.
Harvard subject headings:
Caucasus, Northern (Russia)--History--Congresses.
Caucasus, Northern (Russia)--Politics and government--Congresses.
Caucasus--History--Congresses.
Caucasus--Relations--Russia (Federation)--Congresses.
Russia (Federation)--Relations--Caucasus--Congresses.
Princeton subject headings: