Columbia subject headings:
Russia (Federation)--Historiography.
Russia (Federation)--History--Sources.
Harvard subject headings:
Russia (Federation)--Historiography.
Russia (Federation)--History--Sources.
Russia--Historiography
Russia--History--Sources.
Soviet Union--Historiography.
Soviet Union--History--Sources.
Princeton subject headings:
Russia (Federation)--Historiography.
Russia (Federation)--History--Sources.
Russia--Historiography.
Russia--History--Sources.
Soviet Union--Historiography.
Soviet Union--History--Sources.