Columbia subject headings:
Harvard subject headings:
Science--History
Valéry, Paul, 1871-1945--Criticism and interpretation.
Valéry, Paul, 1871-1945--Knowledge--Science.
Valéry, Paul, 1871-1945. Introduction à la méthode de Léonard de Vinci.
Princeton subject headings:
Valéry, Paul, 1871-1945--Knowledge--Science.