Why study ethnicity? / Andrew M. Greeley -- Social utilities in a pluralistic society / William McCready -- New York segregation : implications for social policy / Nathan Kantrowitz -- Personality development and ethnic identity / J. Gary May -- Environmental influences on social functioning : the Black experience / Leon Chestang -- Residential environment and Black self-image / Dolores Norton -- Transitional values of Puerto Ricans / Joseph Fitzpatrick -- Immigration, work expectations, and labor market structure / Michael J. Piore -- Ethnicity and health delivery systems / Leona Grossman -- American Indian tribal support systems and economic development / Leonard D. Borman -- Bilingualism in America / Pastora San Juan Cafferty.