Columbia subject headings:
Harvard subject headings:
China--Capital and capitol.
Luoyang (Henan Sheng, China)--Historical geography.
Streets--China--Luoyang (Henan Sheng)--History.
Streets--China--Xi'an (Shaanxi Sheng)--History.
Xi'an (Shaanxi Sheng, China)--Historical geography.
Princeton subject headings:
Luoyang (Henan Sheng, China)--History.
Streets--China--Luoyang (Henan Sheng)--History.
Streets--China--Xi'an (Shaanxi Sheng)--History.
Xi'an (Shaanxi Sheng, China)--History.