Columbia subject headings:
Communism--United States--History--20th century.
New Deal, 1933-1939.
Radicalism--United States--History--20th century.
United States--Politics and government--1933-1945.
Harvard subject headings:
Communism--United States--History--20th century
New Deal, 1933-1939.
Radicalism--United States--History--20th century
United States--Politics and government--1933-1945.
Princeton subject headings: