Columbia subject headings:
Harvard subject headings:
Asia, Central--Description and travel.
China--Description and travel.
Silk Road--Antiquities.
Silk Road--Description and travel.
Silk Road--Pictorial works.
Princeton subject headings:
Asia, Central--Description and travel.
China--Description and travel.
Silk Road--Antiquities.
Silk Road--Description and travel.
Silk Road--Pictorial works.