Columbia subject headings:
Harvard subject headings:
V-1 bomb.
World War, 1939-1945--Aerial operations, German.
World War, 1939-1945--Aerial, German.
World War, 1939-1945--England.
Princeton subject headings:
V-1 bomb.
World War, 1939-1945--Aerial operations, German.
World War, 1939-1945--England--Aerial operations, British.
World War, 1939-1945--England.