Columbia subject headings:
Harvard subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716--Criticism and interpretation--Congresses.
Nazi propaganda--Germany--Philosophy--Congresses.
Philosophy, German--17th century--Political aspects--Congresses.
Philosophy, German--18th century--Political aspects--Congresses.
Propaganda, German--History--20th century--Congresses.
Princeton subject headings:
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716--Criticism and interpretation--Congresses.
Nazi propaganda--Germany--Philosophy--Congresses.
Philosophy, German--17th century--Political aspects--Congresses.
Philosophy, German--18th century--Political aspects--Congresses.
Propaganda, German--History--20th century--Congresses.