Columbia subject headings:
Former Soviet republics--Foreign economic relations--Russia (Federation)--History--Sources.
Russia (Federation)--Foreign economic relations--Sources.
Soviet Union--Foreign economic relations--Sources.
Harvard subject headings:
Russia (Federation)--Foreign economic relations--Sources.
Russia (Federation)--History--Revolution, 1917-1921--Sources.
Princeton subject headings:
Russia (Federation)--Foreign economic relations--History--Sources.