Columbia subject headings:
Great Britain. Royal Flying Corps.
World War, 1914-1918--Aerial operations, British.
World War, 1914-1918--Campaigns--France.
Harvard subject headings:
Great Britain. Royal Flying Corps
World War, 1914-1918--Aerial operations, British
World War, 1914-1918--Campaigns--France
Princeton subject headings:
Great Britain. Royal Flying Corps
World War, 1914-1918--Aerial operations, British.
World War, 1914-1918--Campaigns--France.