Columbia subject headings:
Catholic Church--Ambrosian rite.
Catholic Church--Liturgy.
Harvard subject headings:
Arianism.
Catholic Church--Ambrosian rite--Liturgy--Texts.
Catholic Church--Ambrosian rite--Liturgy.
Catholic Church--Ambrosian rite.
Catholic Church--Liturgy--Texts.
Catholic Church--Liturgy.
Princeton subject headings:
Catholic Church--Ambrosian rite.
Catholic Church--Liturgy.