Columbia subject headings:
Harvard subject headings:
Henan Sheng (China)--Antiquities.
Henan Sheng (China)--Description and travel.
Shaanxi Sheng (China)--Antiquities.
Shaanxi Sheng (China)--Description and travel.
Yun'gang Caves (China)
Princeton subject headings:
Henan Sheng (China)--Antiquities.