Columbia subject headings:
Ethnicity--United States.
Minorities--United States.
United States--Ethnic relations.
United States--Race relations.
Harvard subject headings:
Ethnicity--United States
Minorities--United States
United States--Ethnic relations.
United States--Race relations
Princeton subject headings:
Ethnicity--United States.
Minorities--United States.
United States--Ethnic relations.
United States--Race relations.