Columbia subject headings:
Harvard subject headings:
English-speaking countries--Race relations.
Ethnic conflict--English-speaking countries.
Ethnicity--English-speaking countries.
Group identity--English-speaking countries.
Racism--English-speaking countries.
Princeton subject headings:
Ethnic conflict--English-speaking countries.
Ethnicity--English-speaking countries.
Group identity--English-speaking countries.
Racism--English-speaking countries.