Columbia subject headings:
Harvard subject headings:
Warsaw (Poland)--History.
World War, 1939-1945--Poland--Warsaw.
Princeton subject headings:
Poland. Polskie Siły Zbrojne. Armia Krajowa. Biuro Informacji i Propagandy
World War, 1939-1945--Underground literature--Poland.
World War, 1939-1945--Underground movements--Poland--Warsaw.