Columbia subject headings:
Harvard subject headings:
Haixing Xian (China)--History.
Hydraulic engineering--China--Haixing Xian--History.
Irrigation--China--Haixing Xian--History.
Water resources development--China--Haixing Xian--History.
Princeton subject headings:
Hydraulic engineering--China--Haixing Xian--History.
Irrigation--China--Haixing Xian--History.
Water resources development--China--Haixing Xian--History.