Columbia subject headings:
Harvard subject headings:
Excavations (Archaeology)--China--Yanshi Xian.
Pottery, Prehistoric--China--Yanshi Xian.
Yanshi Xian (Henan Sheng, China)--Antiquities.
Princeton subject headings:
Erlitou (China)--Antiquities.
Excavations (Archaeology)--China--Erlitou.