Columbia subject headings:
United States--History--1919-1933.
United States--Social conditions.
World War, 1914-1918--United States.
Harvard subject headings:
United States--History--20th century.
United States--Social conditions.
World War, 1914-1918--United States
Princeton subject headings:
United States--History--20th century.
United States--Social conditions.
World War, 1914-1918--United States.