Columbia subject headings:
East Europeans--United States.
United States--Emigration and immigration.
Harvard subject headings:
East Europeans--United States.
United States--Emigration and immigration.
Princeton subject headings:
Americanization.
East European Americans--Cultural assimilation.
East European Americans--Social conditions.
East Europeans--United States.
Europe, Eastern--Emigration and immigration.
Immigrants--United States--Social conditions.
United States--Emigration and immigration.