Columbia subject headings:
Brizon, Pierre, 1878-1923--Correspondence.
Legislators--France--Correspondence.
Pacifism--France--History--20th century--Sources.
Pacifists--France--Correspondence.
War and socialism--France--History.
World War, 1914-1918--Moral and ethical aspects--France.
Harvard subject headings:
Brizon, Pierre, 1878-1923--Correspondence.
Legislators--France--Correspondence.
Pacifism--France--History--20th century--Sources.
Pacifists--France--Correspondence.
War and socialism--France--History.
World War, 1914-1918--France--Moral and ethical aspects.
World War, 1914-1918--Moral and ethical aspects
Princeton subject headings:
Pacifism--France--History--20th century--Sources.
Pacifists--France--Correspondence.
War and socialism--France--History--20th century--Sources.
World War, 1914-1918--Moral and ethical aspects--France.