Columbia subject headings:
Architecture--Conservation and restoration--China--Chengde.
Art--Conservation and restoration--China--Chengde.
Harvard subject headings:
Architecture--Conservation and restoration--China--Chengde.
Art--Conservation and restoration--China--Chengde.
Chengde (China)--History.
Princeton subject headings:
Architecture--Conservation and restoration--China--Chengde.
Art--Conservation and restoration--China--Chengde.