Columbia subject headings:
S-39 (Submarine)
World War, 1939-1945--Naval operations, American.
World War, 1939-1945--Naval operations--Submarine.
Harvard subject headings:
S-39 (Submarine)
World War, 1939-1945--Naval operations, American
World War, 1939-1945--Naval operations--Submarine
Princeton subject headings:
S-39 (Submarine)
World War, 1939-1945--Naval operations, American.
World War, 1939-1945--Naval operations--Submarine.