Columbia subject headings:
China--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--China.
World War, 1939-1945--Diplomatic history.
Harvard subject headings:
China--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--China.
World War, 1939-1945--Diplomatic history.
Princeton subject headings:
China--Foreign relations--Soviet Union.
Sino-Japanese War, 1937-1945.
Soviet Union--Foreign relations--China.