Columbia subject headings:
Asia--Antiquities--Congresses.
Asia--Civilization--Congresses.
Asia--Commerce--History--Congresses.
Excavations (Archaeology)--Asia--Congresses.
Silk Road--History--Congresses.
Trade routes--Asia--History--Congresses.
Harvard subject headings:
Princeton subject headings:
Asia, Central--Antiquities--Congresses.
Excavations (Archaeology)--Asia, Central--Congresses.
Silk Road--Antiquities--Congresses.
Trade routes--Asia, Central--History--Congresses.