Columbia subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716.
Philosophers--Germany--Correspondence.
Harvard subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716
Philosophers--Germany--Correspondence
Princeton subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716.
Philosophers--Germany--Correspondence.