Columbia subject headings:
France--Politics and government--1914-1940.
Socialism--France--History--20th century.
Socialists--Political activity--France--History--20th century.
War and socialism--France--History--20th century.
World War, 1914-1918--Political aspects--France.
Harvard subject headings:
Socialism--France--20th century.
Socialism--France--History--20th century
Socialists--France--History--20th century.
World War, 1914-1918--France
Princeton subject headings:
Socialism--France--History--20th century.
Socialists--France--History--20th century.
World War, 1914-1918--France.