The items in this bibliography explore the theory, and the social, cultural, and psychological consequences, of membership in a minority or ethnic group. Primary emphasis has been given to two major subject areas: materials dealing with the situation of immigrant ethnic groups, their psychological adjustment, and conditions affecting acculturation; and materials dealing with patterns of ethnic behavior, identity, family life, and communication structure. Because the study of ethnic groups encompasses such a large number of topics, any bibliography treating even selected aspects would have to limit scope and coverage. Extensive coverage of American Negroes, American Indians, and Mexican Americans is not attempted in this document. Some of the more recent general studies of these groups, and general studies on intergroup and ethnic-racial relations, have been included, but it was felt that materials specific to Negroes, Indians, and Mexican Americans were better dealt with in specialized bibliographies. The significance of ethnicity in American life is a major program concern of the Center for Studies of Metropolitan Problems. The present document represents a first step toward the development of an ongoing comprehensive bibliography in the area of ethnicity. (Author/JM)