Columbia subject headings:
Authors, French--20th century--Correspondence.
Pergaud, Louis, 1882-1915--Correspondence.
Soldiers--France--Correspondence.
Harvard subject headings:
Authors, French--20th century--Correspondence
Pergaud, Louis, 1882-1915--Correspondence.
Soldiers--France--Correspondence
World War, 1914-1918--Campaigns--France--Meuse.
Princeton subject headings:
Authors, French--20th century--Correspondence.
Pergaud, Louis, 1882-1915--Correspondence.
Personal correspondence.
Soldiers--France--Correspondence.