Columbia subject headings:
Harvard subject headings:
Hertz, Alice, 1877-1927--Correspondence.
Hertz, Robert, 1881-1915--Correspondence.
Sociologists--France--Biography.
World War, 1914-1918--Campaigns--France
Princeton subject headings:
Hertz, Alice, 1877-1927--Correspondence.
Hertz, Robert, 1881-1915--Correspondence.
Sociologists--France--Biography.
World War, 1914-1918--Campaigns--France.