Columbia subject headings:
Harvard subject headings:
Jews--Germany--Viersen (Kreis)--History.
Viersen (Germany : Kreis)--Ethnic relations.
Viersen (Germany : Kreis)--History.
Princeton subject headings:
Holocaust, Jewish (1939-1945)--Germany--Viersen (Kreis).
Jews--Germany--Viersen (Kreis)--History.
Viersen (Germany : Kreis)--History.