Columbia subject headings:
Church decoration and ornament, Gothic.
Doorways, Gothic--Conservation and restoration--Congresses.
Sculpture, Gothic--Conservation and restoration--Congresses.
Harvard subject headings:
Cathédrale d'Amiens--Congresses.
Doorways--Congresses.
Doorways--Conservation and restoration--France--Amiens--Congresses.
Doorways--Europe--Congresses.
Polychromy--Congresses.
Polychromy--Conservation and restoration--France--Amiens--Congresses.
Sculpture, Gothic--Congresses.
Sculpture, Gothic--Conservation and restoration--France--Amiens--Congresses.
Stone carving--Congresses.
Stone-carving--Europe--Congresses.
Princeton subject headings:
Cathédrale d'Amiens--Congresses.
Doorways--Congresses.
Doorways--Conservation and restoration--France--Amiens--Congresses.
Polychromy--Congresses.
Polychromy--Conservation and restoration--France--Amiens--Congresses.
Sculpture, Gothic--Congresses.
Sculpture, Gothic--Conservation and restoration--France--Amiens--Congresses.
Stone carving--Congresses.