Columbia subject headings:
Harvard subject headings:
China--Relations--Japan--Congresses.
Japan--Relations--China--Congresses.
Marco Polo Bridge Incident, China, 1937--Congresses.
Sino-Japanese War, 1937-1945--Congresses.
Princeton subject headings:
China--Foreign relations--Japan.
Japan--Foreign relations--China.
Sino-Japanese War, 1937-1945.