Columbia subject headings:
Beijing (China)--Buildings, structures, etc.
Palaces--China--Beijing.
Yihe Yuan (Beijing, China)
Harvard subject headings:
Beijing (China)--Buildings, structures, etc.--Pictorial works.
I Ho Yüan (Peking, China)
Palaces--China--Beijing--Pictorial works.
Yihe Yuan (Beijing, China)
Princeton subject headings:
Yihe Yuan (Beijing, China).