Columbia subject headings:
Harvard subject headings:
Britain, Battle of, Great Britain, 1940.
World War, 1939-1945--Aerial operations, British.
World War, 1939-1945--Campaigns--France.
Princeton subject headings:
Great Britain. Royal Air Force--History--World War, 1939-1945.
World War, 1939-1945--Aerial operations, British.
World War, 1939-1945--Campaigns--France.