Columbia subject headings:
Harvard subject headings:
Reformation--Switzerland--Zurich.
Zurich (Switzerland)--Church history.
Zwingli, Ulrich, 1484-1531
Princeton subject headings:
Bullinger, Heinrich, 1504-1575.
Reformation--Switzerland--Zürich.
Zurich (Switzerland)--Church history.
Zwingli, Ulrich, 1484-1531.