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