Columbia subject headings:
Incunabula--Bibliography--Union lists.
Union catalogs--Russia (Federation)--Moscow.
Harvard subject headings:
Incunabula--Archival resources--Russia (Federation)--Moscow--Bibliography--Catalogs.
Incunabula--Bibliography--Union lists.
Incunabula--Russia (Federation)--Moscow--Bibliography--Union lists.
Libraries--Russia (Federation)--Moscow.
Library catalogs--Russia (Federation)--Moscow.
Museums--Russia (Federation)--Moscow--Catalogs.
Rare books--Russia (Federation)--Moscow--Bibliography--Union lists.
Union catalogs--Russia (Federation)--Moscow.
Princeton subject headings: