Columbia subject headings:
Jews, Russian--Congresses.
Jews--United States--Charities--Congresses.
Jews--United States--Social conditions--Congresses.
Soviet Union--Emigration and immigration--Congresses.
United States--Emigration and immigration--Congresses.
Harvard subject headings:
Jews, Russian--United States--Congresses.
Jews, Soviet--United States--Congresses.
Jews--United States--Charities--Congresses.
Jews--United States--Social conditions--Congresses.
Soviet Union--Emigration and immigration--Congresses.
United States--Emigration and immigration--Congresses.
Princeton subject headings:
Jews, Soviet--United States--Congresses.
Jews--United States--Charities--Congresses.
Jews--United States--Social conditions--Congresses.
Soviet Union--Emigration and immigration--Congresses.
United States--Emigration and immigration--Congresses.