Columbia subject headings:
Harvard subject headings:
Weiyang gong (Xi'an, Shaanxi Sheng, China)
Xi'an (Shaanxi Sheng, China)--Buildings, structures, etc.
Princeton subject headings:
Weiyang gong (Xi'an, Shaanxi Sheng, China)
Xi'an (Shaanxi Sheng, China)--Buildings, structures, etc.