Columbia subject headings:
Harvard subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716--Congresses.
Magic--History--Congresses.
Science--History--Congresses
Princeton subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716--Congresses.
Science and magic--History--Congresses.