Columbia subject headings:
Augsburg Confession--Congresses.
Luther, Martin, 1483-1546--Congresses.
Lutheran Church--Hungary--History--Congresses.
Lutheran Church--Romania--Transylvania--History--Congresses.
Harvard subject headings:
Augsburg Confession--Congresses.
Luther, Martin, 1483-1546--Congresses.
Lutheran Church--Education--Hungary--History--Congresses.
Lutheran Church--Education--Romania--Transylvania--History--Congresses.
Lutheran Church--Hungary--History--Congresses.
Lutheran Church--Romania--Transylvania--History--Congresses.
Reformation--Hungary--Congresses.
Reformation--Romania--Transylvania--Congresses.
Princeton subject headings: