Columbia subject headings:
Denmark--History--German occupation, 1940-1945.
Skov, Niels Aage.
World War, 1939-1945--Personal narratives, Danish.
World War, 1939-1945--Underground movements--Denmark.
Harvard subject headings:
Netherlands. Koninklijke Landmacht--Biography.
Skov, Niels Aage.
Soldiers--Netherlands--Biography
World War, 1939-1945--Campaigns--Western Front.
World War, 1939-1945--Personal narratives, Danish.
Princeton subject headings: