Columbia subject headings:
Harvard subject headings:
Qincheng qu (China)--Economic conditions.
Qincheng qu (China)--Social conditions.
Princeton subject headings:
Qincheng Qu (Tianshui, Gansu Sheng, China)--Economic conditions.
Qincheng Qu (Tianshui, Gansu Sheng, China)--Social conditions.
Tianshui (Gansu Sheng, China)--Economic conditions.
Tianshui (Gansu Sheng, China)--Social conditions.