Columbia subject headings:
Harvard subject headings:
Linru Xian (Henan Sheng, China)--History.
Luoshan Xian (Henan Sheng, China)--History.
Tengzhou (China)--History.
Yancheng Xian (Henan Sheng, China)--History.
Princeton subject headings:
Linru Xian (Henan Sheng, China)--History.
Luoshan Xian (Henan Sheng, China)--History.
Tengzhou (China)--History.
Yancheng Xian (Henan Sheng, China)--History.