Columbia subject headings:
Holocaust, Jewish (1939-1945)--Poland--Warsaw--Sources.
Jews--Poland--Warsaw--Sources.
Ringelblum, Emanuel, 1900-1944--Archives.
Warsaw (Poland)--History--20th century--Sources.
Harvard subject headings:
Holocaust, Jewish (1939-1945)--Poland--Warsaw--Sources.
Jews--Poland--Warsaw--Sources.
Ringelblum, Emanuel, 1900-1944--Archives.
Warsaw (Poland)--History--20th century--Sources.
Princeton subject headings:
Holocaust, Jewish (1939-1945)--Poland--Warsaw--Sources.
Jews--Poland--Warsaw--Sources.
Ringelblum, Emanuel, 1900-1944--Archives.
Warsaw (Poland)--History--20th century--Sources.