Columbia subject headings:
Décades de Pontigny--History--Pictorial works.
France--Intellectual life--20th century--Pictorial works.
Intellectuals--France--Portraits.
Harvard subject headings:
Décades de Pontigny--Pictorial works.
France--Intellectual life--20th century--Pictorial works.
Intellectuals--France--Pictorial works.
Princeton subject headings: