Columbia subject headings:
Catholic Church--Chaldean rite--Liturgy.
Church of the East. Liturgy.
Lord's Supper--Catholic Church--Chaldean rite--Liturgy.
Lord's Supper--Nestorian Church--Liturgy.
Harvard subject headings:
Assyrian Church of the East--Liturgy.
Catholic Church--Chaldean rite--Liturgy.
Church of the East--Liturgy.
Lord's Supper (Liturgy)
Princeton subject headings:
Nestorian Church--Liturgy--History.
Nestorian Church--Liturgy.