Columbia subject headings:
Bruder Claus--Criticism, interpretation, etc.
Mysticism--Germany.
Mysticism--History--Middle Ages, 600-1500.
Nikolaus, von der Flüe, Saint, 1417-1487.
Harvard subject headings:
Bruder Claus--Criticism, interpretation, etc.
Mysticism--Germany
Mysticism--History--Middle Ages, 600-1500
Nikolaus, von der Flüe, Saint, 1417-1487.
Princeton subject headings: