Columbia subject headings:
Communism--New York (State)--New York--History.
Communist Party of the United States of America--History.
Depressions--1929--United States.
Harlem (New York, N.Y.)--History.
Harvard subject headings:
Communism--New York (State)--New York--History.
Communist Party of the United States of America--History.
Depressions--1929--United States
Harlem (New York, N.Y.)--History.
Princeton subject headings: