Columbia subject headings:
Harvard subject headings:
African Americans--History--1877-1964
African Americans--History--1964-
African Americans--Migrations--History--20th century.
African Americans--Social conditions
Princeton subject headings:
African Americans--History--1877-1964.
African Americans--History--1964-
African Americans--Migrations--History--20th century.
African Americans--Social conditions.
Video recordings.