Columbia subject headings:
Holocaust, Jewish (1939-1945)--Poland.
Jews--Poland--Social life and customs.
Poland--Ethnic relations.
Harvard subject headings:
Holocaust, Jewish (1939-1945)--Poland
Jews--Poland--Social life and customs.
Poland--Ethnic relations
Princeton subject headings:
Holocaust, Jewish (1939-1945)--Poland.
Jews--Poland--Social life and customs.
Poland--Ethnic relations.