Columbia subject headings:
Harvard subject headings:
China--Foreign relations--1912-1949--Sources.
China--Foreign relations--Soviet Union--Sources.
Communism--China--History--Sources.
Soviet Union--Foreign relations--China--Sources.
Princeton subject headings:
China--Foreign relations--1912-1949--Sources.
China--Foreign relations--Soviet Union--Sources.
Communism--China--History--Sources.
Soviet Union--Foreign relations--China--Sources.