Columbia subject headings:
Holocaust, Jewish (1939-1945)--Poland.
Jews--Poland--History.
Poland--Ethnic relations.
Poland--History--Occupation, 1939-1945.
Righteous Gentiles in the Holocaust--Poland.
Harvard subject headings:
Holocaust, Jewish (1939-1945)--Poland
Jews--Poland--History.
Poland--Ethnic relations
Poland--History--Occupation, 1939-1945
Righteous Gentiles in the Holocaust--Poland.
Princeton subject headings:
Jews--Poland--History.