Columbia subject headings:
Archivio storico Ricordi--Catalogs.
Donizetti, Gaetano, 1797-1848--Bibliography--Catalogs.
Donizetti, Gaetano, 1797-1848--Manuscripts--Catalogs.
Music--Manuscripts--Catalogs.
Harvard subject headings:
Archivio storico Ricordi--Catalogs.
Donizetti, Gaetano, 1797-1848--Manuscripts--Catalogs.
Music--Manuscripts--Italy--Milan--Catalogs.
Princeton subject headings:
Archivio storico Ricordi--Catalogs.
Catalogs.
Donizetti, Gaetano, 1797-1848--Bibliography--Catalogs.
Donizetti, Gaetano, 1797-1848--Manuscripts--Catalogs.
Music--Manuscripts--Catalogs.