Columbia subject headings:
Third parties (United States politics)--History--Bibliography.
United States--Politics and government--1865-1900--Bibliography.
United States--Politics and government--20th century--Bibliography.
Harvard subject headings:
Third parties (United States politics)--History--Bibliography.
United States--Politics and government--1865-1900--Bibliography.
United States--Politics and government--20th century--Bibliography.
Princeton subject headings:
Third parties (United States politics)--History--Bibliography.
United States--Politics and government--1865-1900--Bibliography.
United States--Politics and government--20th century--Bibliography.