Columbia subject headings:
Harvard subject headings:
Great Britain. Royal Air Force--History.
World War, 1939-1945--Aerial operations, British.
World War, 1939-1945--Aerial operations, English.
World War, 1939-1945--Aerial operations--France.
World War, 1939-1945--Campaigns--France--Cotentin.
Princeton subject headings:
Great Britain. Royal Air Force--Biography.
Great Britain. Royal Air Force--History--20th century.
World War, 1939-1945--Aerial operations, British.
World War, 1939-1945--France--Cotentin.