Columbia subject headings:
Harvard subject headings:
Civilization--Philosophy--Congresses
Russia (Federation)--Civilization--Congresses.
Russia (Federation)--Social conditions--1991---Congresses.
Russia--Civilization--Congresses.
Social change--Russia (Federation)--Congresses
Princeton subject headings:
Russia (Federation)--Social conditions--1991---Congresses.
Social change--Russia (Federation)--Congresses.