Columbia subject headings:
Artists--France--20th century--Correspondence.
Authors, French--20th century--Correspondence.
Bonnefoy, Yves--Correspondence.
Intellectuals--France--History--20th century--Correspondence.
Harvard subject headings:
Artists--France--20th century--Correspondence.
Authors, French--20th century--Correspondence
Bonnefoy, Yves. Correspondence
Intellectuals--France--20th century--Correspondence.
Princeton subject headings:
Bonnefoy, Yves. Correspondence.
Poets, French--20th century--Correspondence.
Poets, French--21st century--Correspondence.