Columbia subject headings:
Harvard subject headings:
Internal security--China--History--Sources.
Japan. Rikugun. Shina Chūton Kenpeitai--History--Sources.
Marco Polo Bridge Incident, China, 1937--Sources.
Sino-Japanese War, 1937-1945--China--Sources.
Princeton subject headings:
Internal security--China--History--Sources.
Japan. Rikugun. Shina Chūton Kenpeitai--History--Sources.
Marco Polo Bridge Incident, China, 1937--Sources.
Sino-Japanese War, 1937-1945--China--Sources.