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