Columbia subject headings:
African Americans--Economic conditions.
African Americans--Social conditions.
Minorities--United States.
United States--Ethnic relations.
United States--Race relations.
Harvard subject headings:
African Americans--Economic conditions
African Americans--Social conditions
Minorities--United States
United States--Ethnic relations.
United States--Race relations
Princeton subject headings:
African Americans--Economic conditions.
African Americans--Social conditions.
Minorities--United States.
United States--Ethnic relations.
United States--Race relations.