Columbia subject headings:
Russia (Federation)--Civilization--Congresses.
Russia (Federation)--Historiography--Congresses.
Russia (Federation)--Politics and government--1991---Congresses.
Soviet Union--Civilization--Congresses.
Soviet Union--Politics and government--Congresses.
Harvard subject headings:
Princeton subject headings:
Russia (Federation)--Civilization--Congresses.
Russia (Federation)--Historiography--Congresses.
Russia (Federation)--Politics and government--1991---Congresses.
Soviet Union--Civilization--Congresses.
Soviet Union--Politics and government--Congresses.