Columbia subject headings:
Harvard subject headings:
World War, 1939-1945--Campaigns--Mediterranean Sea.
World War, 1939-1945--Naval operations, Italian.
World War, 1939-1945--Secret service--Great Britain.
Princeton subject headings:
World War, 1939-1945--Mediterranean Sea.
World War, 1939-1945--Naval operations, Italian.
World War, 1939-1945--Secret service--Great Britain.