Columbia subject headings:
Archives--Soviet Union.
Cherepnin, L. V. (Lev Vladimirovich)
Russia--History--Period of Consolidation, 1462-1605--Sources--Bibliography--Catalogs.
Zimin, A. A. (Aleksandr Aleksandrovich)
Harvard subject headings:
Princeton subject headings:
Archives--Soviet Union.
Russia--History--Period of consolidation, 1462-1605--Sources--Bibliography--Catalogs.