Columbia subject headings:
Harvard subject headings:
Xi'an (Shaanxi Sheng, China)--Census, 1990.
Xi'an (Shaanxi Sheng, China)--Population--Statistics.
Princeton subject headings:
Xi'an (Shaanxi Sheng, China)--Census, 1990.
Xi'an (Shaanxi Sheng, China)--Population--Statistics.