Columbia subject headings:
Jews, Russian--Germany--History.
Jews, Russian--History--20th century.
Soviet Union--Emigration and immigration.
Harvard subject headings:
Jews, Russian--Germany--History.
Jews, Russian--History--20th century.
Soviet Union--Emigration and immigration.
Princeton subject headings:
Jews, Russian--Germany--History.
Jews, Russian--History--20th century.
Soviet Union--Emigration and immigration.