Columbia subject headings:
Bullinger, Heinrich, 1504-1575.
Reformation--Switzerland--Zurich.
Zwingli, Ulrich, 1484-1531.
Harvard subject headings:
Bullinger, Heinrich, 1504-1575.
Reformation--Switzerland--Zurich.
Reformed Church--Switzerland--Zurich--History.
Zwingli, Ulrich, 1484-1531
Princeton subject headings: