Columbia subject headings:
China--Commerce--United States.
China--Commercial treaties.
United States--Commerce--China.
United States--Commercial treaties.
Harvard subject headings:
China--Commerce--United States.
China--Commercial treaties.
United States--Commerce--China.
United States--Commercial treaties.
Princeton subject headings:
China--Commerce--United States.
China--Commercial treaties.
United States--Commerce--China.
United States--Commercial treaties.