Columbia subject headings:
Authors, French--20th century--Correspondence.
Gide, André, 1869-1951--Correspondence.
Levesque, Robert, 1909---Correspondence.
Harvard subject headings:
Authors, French--20th century--Correspondence
Gide, André, 1869-1951. Correspondence
Levesque, Robert, 1909---Correspondence.
Princeton subject headings:
Authors, French--20th century--Correspondence.
Gide, André, 1869-1951. Correspondence.
Levesque, Robert, 1909---Correspondence.