Columbia subject headings:
Naval convoys--Great Britain--History--20th century.
World War, 1939-1945--Campaigns--Malta.
World War, 1939-1945--Naval operations, British.
Harvard subject headings:
Naval convoys--Great Britain--History--20th century.
Naval convoys--Malta--History--20th century.
World War, 1939-1945--Campaigns--Malta.
World War, 1939-1945--Naval operations, British.
Princeton subject headings:
Naval convoys--Great Britain--History--20th century.
Naval convoys--Malta--History--20th century.
World War, 1939-1945--Campaigns--Malta.
World War, 1939-1945--Naval operations, British.