Columbia subject headings:
Authors, French--20th century--Correspondence.
Ponge, Francis--Correspondence.
Thibaudeau, Jean--Correspondence.
Harvard subject headings:
Authors, French--20th century--Correspondence
Ponge, Francis--Correspondence.
Thibaudeau, Jean--Correspondence.
Princeton subject headings:
Authors, French--20th century--Correspondence.
Ponge, Francis--Correspondence.
Thibaudeau, Jean--Correspondence.