Columbia subject headings:
China--Civilization.
China--Relations.
Silk Road--Anecdotes.
Silk Road--History.
Trade routes--China--History.
Harvard subject headings:
China--Civilization.
China--Relations.
Silk Road--Anecdotes.
Silk Road--History.
Trade routes--China--History.
Princeton subject headings:
Anecdotes.
China--Civilization.
China--Relations.
Silk Road--Anecdotes.
Silk Road--History.
Trade routes--China--History.