Columbia subject headings:
Authors, French--20th century--Biography.
Intellectuals--France--Biography.
World War, 1914-1918--Campaigns--France.
World War, 1914-1918--Literature and the war.
World War, 1914-1918--Social aspects--France.
World War, 1914-1918--Trench warfare.
Harvard subject headings:
Authors, French--20th century--Biography
Intellectuals--France--Biography.
World War, 1914-1918--Campaigns--France
World War, 1914-1918--Social aspects--France.
World War, 1914-1918--Trench warfare
Princeton subject headings:
Authors, French--20th century--Biography.
Intellectuals--France--Biography.
World War, 1914-1918--Campaigns--France.
World War, 1914-1918--Social aspects--France.
World War, 1914-1918--Trench warfare.