Columbia subject headings:
Reformation--Congresses.
Reformation--Switzerland--Congresses.
Zwingli, Ulrich, 1484-1531--Congresses.
Harvard subject headings:
Europe--Civilization--Congresses.
Europe--History--1492-1648--Congresses.
Reformation--Congresses
Switzerland--Church history--16th century--Congresses.
Zwingli, Ulrich, 1484-1531--Congresses.
Zwingli, Ulrich, 1484-1531--Influence--Congresses.
Princeton subject headings:
Reformation--Congresses.
Reformation--Switzerland--Congresses.
Zwingli, Ulrich, 1484-1531--Congresses.