Columbia subject headings:
Harvard subject headings:
Poland--History--Occupation, 1939-1945
World War, 1939-1945--Poland.
World War, 1939-1945--War work--Boy Scouts.
Związek Harcerstwa Polskiego--History.
Princeton subject headings:
Poland--History--Occupation, 1939-1945.
World War, 1939-1945--Poland.
World War, 1939-1945--War work--Boy Scouts.
Związek Harcerstwa Polskiego--History.