Columbia subject headings:
Authors, Polish--Biography.
World War, 1939-1945--Underground literature--Poland.
Harvard subject headings:
Authors, Polish--Biography.
World War, 1939-1945--Underground literature--Poland.
Princeton subject headings:
Authors, Polish--20th century--Biography.
Poland--Intellectual life--1918-1945.
World War, 1939-1945--Underground movements--Poland.