Columbia subject headings:
Admiral Graf Spee (Battleship)
Langsdorff, Hans Wilhelm, 1894-1939.
River Plate, Battle of the, 1939.
World War, 1939-1945--Naval operations, German.
Harvard subject headings:
Admiral Graf Spee (Battleship)
Battleships--History
River Plate, Battle of the, 1939
Princeton subject headings: