Columbia subject headings:
Congregational churches--Liturgy--History.
Liturgics--History.
Lord's Supper (Liturgy)--History.
Harvard subject headings:
Congregational churches--Liturgy--History.
Liturgics--History.
Lord's Supper (Liturgy)--History
Princeton subject headings:
Congregational churches--Liturgy--History.
Liturgics--History.
Lord's Supper (Liturgy)--History.