Columbia subject headings:
African Americans--Economic conditions.
African Americans--Employment.
African Americans--Social conditions--1964-1975.
African Americans--Social conditions--1975-
Social security--United States.
Harvard subject headings:
Princeton subject headings:
African Americans--Economic conditions.
African Americans--Employment.
African Americans--Social conditions--1964-1975.
African Americans--Social conditions--1975-
Social security--United States.