Races Of Man -- See Ethnology Here, with appropriate local subdivision, are entered works on the discipline of ethnology, and works on the origin, distribution, and characteristics of the elements of the population of a particular region or country. Theoretical works on the concept of groups of people who are bound together by common ties of ancestry and culture are entered under Ethnic groups. Works on the subjective sense of belonging to an individual ethnic group are entered under Ethnicity. General works on racial, religious, ethnic, or other minority groups are entered under Minorities. --individual ethnic groups and peoples, e.g. Indo-Europeans; Caucasian race; Hopi Indians; Igbo (African people)
Racial Crossing -- See Miscegenation Here are entered works on marriage or sexual relations between persons of different races and on the resulting mixture or hybridity of races.
Racial Discrimination -- See Race discrimination Here are entered works which are limited to overt discriminatory behavior directed against racial or ethnic groups. Works on racism as an attitude as well as works on both attitude and overt discriminatory behavior directed against racial or ethnic groups are entered under Racism. Works on discrimination directed against a particular group are entered under the name of the group with subdivision Social conditions, or similar subdivision, e.g. Civil rights. When the heading Race discrimination is subdivided by place, a second subject entry is made in each case under the name of the place subdivided by Race relations.