Columbia subject headings:
Boys--Fiction.
Shanghai (China)--Fiction.
World War, 1939-1945--China--Shanghai--Fiction.
Harvard subject headings:
Boys--Fiction
Shanghai (China)--Fiction
Shanghai (China)--History--Fiction.
World War, 1939-1945--China--Shanghai--Fiction.
World War, 1939-1945--Fiction.
Princeton subject headings:
Fiction.
Shanghai (China)--History--Fiction.
World War, 1939-1945--Fiction.