Columbia subject headings:
Antifonario visigótico mozárabe de la Catedral de León.
Antiphonaries.
Catholic Church--Mozarabic rite.
Gregorian chants.
Harvard subject headings:
Antiphonaries (Service books)
Antiphonaries.
Catholic Church--Mozarabic rite--Liturgy.
Facsimiles
Gregorian chants.
Music--Manuscripts--Facsimiles.
Sacred vocal music--Spain--500-1400.
Scores.
Princeton subject headings: