Columbia subject headings:
Authors, French--20th century--Correspondence.
Céline, Louis-Ferdinand, 1894-1961--Correspondence.
Monnier, Pierre, 1911-
Harvard subject headings:
Authors, French--20th century--Correspondence
Céline, Louis-Ferdinand, 1894-1961--Correspondence.
Monnier, Pierre, 1911-
Princeton subject headings:
Authors, French--20th century--Correspondence.
Céline, Louis-Ferdinand, 1894-1961--Correspondence.
Monnier, Pierre, 1911-