Columbia subject headings:
Ethnology--United States--History.
Immigrants--United States--History.
Minorities--United States--History.
United States--Emigration and immigration--History.
United States--Ethnic relations.
Harvard subject headings:
Ethnology--United States--History.
Immigrants--United States--History
Minorities--United States--History
United States--Emigration and immigration--History.
United States--Ethnic relations.
Princeton subject headings: