Columbia subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900--Congresses.
Philosophy, Modern--19th century--Congresses.
Harvard subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900
Philosophy, German--19th century.
Princeton subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900--Congresses.
Philosophy, Modern--19th century--Congresses.