Columbia subject headings:
Harvard subject headings:
Ethnology--Russia (Federation)--Encyclopedias.
Russia--Biography--Dictionaries.
Russia--History--Encyclopedias.
Soviet Union--Biography--Dictionaries.
Soviet Union--History--Encyclopedias.
Princeton subject headings:
Encyclopedias.
Russia (Federation)--Encyclopedias.
Russia--Encyclopedias.
Soviet Union--Encyclopedias.