Columbia subject headings:
Naval convoys--Arctic regions.
World War, 1939-1945--Arctic regions--Naval operations.
World War, 1939-1945--Arctic regions.
World War, 1939-1945--Soviet Union--Naval operations, Soviet.
Harvard subject headings:
Naval convoys--Arctic regions.
World War, 1939-1945--Arctic regions--Naval operations.
World War, 1939-1945--Arctic regions.
Princeton subject headings:
Naval convoys--Arctic regions.
World War, 1939-1945--Arctic regions--Naval operations.
World War, 1939-1945--Arctic regions.