Columbia subject headings:
Demography--United States.
Ethnicity--United States--Classification.
Hispanic Americans--Population--Statistics.
Race--Classification.
United States--Census--Research.
Harvard subject headings:
Demography--United States.
Ethnicity--United States--Classification.
Hispanic Americans--Population--Statistics.
Race--Classification.
United States--Census--Research.
United States--Census.
Princeton subject headings:
Demography--United States.
Ethnicity--United States--Classification.
Hispanic Americans--Population--Statistics.
Race--Classification.
Statistics.
United States--Census--Research.