Columbia subject headings:
Harvard subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716. Monadologie--Congresses.
Metaphysics--Congresses
Monadology--Congresses.
Princeton subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716.
Metaphysics.
Monadology.