Columbia subject headings:
Harvard subject headings:
United States--History--Periodicals.
United States--Politics and government--20th century--Periodicals.
United States--Social conditions--1865-1918--Periodicals.
Princeton subject headings:
Periodicals.
United States--History--Periodicals.
United States--Politics and government--20th century--Periodicals.
United States--Social conditions--Periodicals.