Columbia subject headings:
Ethnicity--Economic aspects.
Ethnicity--Political aspects.
Race relations--Economic aspects.
Race relations--Political aspects.
Harvard subject headings:
Ethnicity--Economic aspects--Cross-cultural studies.
Ethnicity--Economic aspects.
Ethnicity--Political aspects
Ethnicity--Political aspects--Cross-cultural studies.
Race relations--Economic aspects
Race relations--Economic aspects--Cross-cultural studies.
Race relations--Political aspects
Race relations--Political aspects--Cross-cultural studies.
Princeton subject headings:
Ethnicity--Economic aspects.
Ethnicity--Political aspects.
Race relations--Economic aspects.
Race relations--Political aspects.