Columbia subject headings:
Holocaust, Jewish (1939-1945)--Poland.
Jewish martyrs--Poland.
Jews--Persecutions--Poland.
Judaism--Poland--History--20th century.
Poland--Ethnic relations.
Harvard subject headings:
Holocaust, Jewish (1939-1945)--Poland
Jewish martyrs--Poland.
Jews--Persecutions--Poland.
Judaism--Poland--History--20th century.
Poland--Ethnic relations
Princeton subject headings:
Holocaust, Jewish (1939-1945)--Poland.
Jewish martyrs--Poland.
Jews--Persecutions--Poland.
Judaism--Poland--History--20th century.
Poland--Ethnic relations.