Columbia subject headings:
Lord's Supper--Lutheran Church--Congresses.
Lord's Supper--Orthodox Eastern Church--Congresses.
Harvard subject headings:
Lord's Supper--Lutheran Church--Congresses.
Lord's Supper--Orthodox Eastern Church--Congresses.
Princeton subject headings:
Lord's Supper--Lutheran Church--Congresses.
Lord's Supper--Orthodox Eastern Church--Congresses.