Columbia subject headings:
Harvard subject headings:
Free ports and zones--China--Tianjin.
Shenzhen (Guangdong Sheng, China : East)--Economic conditions.
Shenzhen Jingji Tequ (Shenzhen, Guangdong Sheng, China)
Princeton subject headings:
Free ports and zones--China--Tianjin.
Shenzhen Jingji Tequ (Shenzhen Shi, China)
Shenzhen Shi (China)--Economic conditions.