Columbia subject headings:
Manuscripts, Latin (Medieval and modern)--Italy--Naples--Catalogs.
Naples (Italy)--Church history--Manuscripts--Catalogs.
Naples (Italy)--Church history--Sources--Bibliography--Catalogs.
Santi Severino e Sossio (Monastery : Naples, Italy)--Archives--Catalogs.
Sicily (Italy)--Church history--Manuscripts--Catalogs.
Sicily (Italy)--Church history--Sources--Bibliography--Catalogs.
Harvard subject headings:
Princeton subject headings:
Catalogs.
Manuscripts, Latin--Italy--Naples--Catalogs.
Naples (Italy)--History--Sources--Bibliography--Catalogs.
Santi Severino e Sossio (Monastery : Naples, Italy)--Manuscripts--Catalogs.