Columbia subject headings:
Jews--Migrations.
Harvard subject headings:
Jews, East European--United States--Congresses.
Jews--Europe, Eastern--Migrations--Congresses.
United States--Ethnic relations--Congresses.
Princeton subject headings:
Jews, East European--United States--Congresses.
Jews--Europe, Eastern--Migrations--Congresses.
United States--Ethnic relations--Congresses.