Columbia subject headings:
Vocal music--Manuscripts--Catalogs.
Vocal music--Manuscripts--Great Britain--Bibliography--Catalogs.
Harvard subject headings:
Manuscripts, Medieval--Catalogs.
Vocal music--500-1400--Manuscripts--Bibliography--Catalogs.
Vocal music--500-1400--Manuscripts--Catalogs.
Vocal music--Great Britain--Manuscripts--Bibliography--Catalogs.
Vocal music--Great Britain--Manuscripts--Catalogs.
Princeton subject headings:
Catalogs.
Music--Manuscripts--Catalogs.