Columbia subject headings:
Harvard subject headings:
China--Foreign relations--20th century.
China--Foreign relations--21st century.
China--Foreign relations--United States.
United States--Foreign relations--20th century.
United States--Foreign relations--21st century.
United States--Foreign relations--China.
Princeton subject headings:
China--Foreign relations--21st century.
China--Foreign relations--United States.
United States--Foreign relations--21st century.
United States--Foreign relations--China.