Columbia subject headings:
Harvard subject headings:
Shaanxi Sheng (China)--History--Sources.
Sichuan Sheng (China)--History--Sources.
Princeton subject headings:
Shaanxi Sheng (China)--History--Sources.
Shaanxi Sheng (China)--History.
Sichuan Sheng (China)--History--Sources.
Sichuan Sheng (China)--History.