Columbia subject headings:
Neutrality--Scandinavia.
Scandinavia--Neutrality.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Norway.
Harvard subject headings:
Neutrality--Scandinavia.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Norway.
Princeton subject headings:
Scandinavia--Neutrality.
World War, 1939-1945--Diplomatic history.
World War, 1939-1945--Norway.