Columbia subject headings:
Harvard subject headings:
Great Britain. Royal Navy
Submarine warfare.
World War, 1914-1918--Campaigns--Turkey--Gallipoli Peninsula
World War, 1914-1918--Naval operations, British
World War, 1914-1918--Naval operations--Submarine
Princeton subject headings:
World War, 1914-1918--Campaigns--Turkey.
World War, 1914-1918--Naval operations, British.
World War, 1914-1918--Naval operations--Submarine.