Columbia subject headings:
Russia--Civilization--Philosophy.
Russia--Relations.
Soviet Union--Civilization--Philosophy.
Soviet Union--Relations.
Harvard subject headings:
Russia--Civilization--Philosophy.
Russia--Relations.
Soviet Union--Civilization--Philosophy.
Soviet Union--Relations.
Princeton subject headings:
Russia (Federation)--Civilization--Philosophy.
Russia (Federation)--Relations--Foreign countries.
Russia--Civilization--Philosophy.
Russia--Relations--Foreign countries.
Soviet Union--Civilization--Philosophy.
Soviet Union--Relations.