Columbia subject headings:
Harvard subject headings:
Alxa Zuoqi (China : Qi)--History.
Hydraulic engineering--China : Qi--Alxa Zuoqi--History.
Water resources development--China : Qi--Alxa Zuoqi--History.
Princeton subject headings:
Hydraulic engineering--China--Alashan meng.
Water resources development--China--Alashan meng.