Columbia subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900.
Valéry, Paul, 1871-1945--Criticism and interpretation.
Harvard subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900
Valéry, Paul, 1871-1945--Criticism and interpretation.
Princeton subject headings:
Nietzsche, Friedrich Wilhelm, 1844-1900.
Valéry, Paul, 1871-1945--Criticism and interpretation.