Source Data Reference for:

City = Baoji
Time = -1000

City Year Size Size Comment Year Comment Author Title Location
Qiyi-1100 10,000"10,000 or more"George ModelskiWorld Cities -3000 to 2000p34
Qiyi-1000 10,000"10,000 or more"George ModelskiWorld Cities -3000 to 2000p34