Columbia subject headings:
Harvard subject headings:
Antiquities--Collection and preservation--Congresses
Art--Conservation and restoration--Congresses.
Material culture--Conservation and restoration--Congresses.
Museum conservation methods--Congresses.
Museum conservation methods.
Princeton subject headings:
Art--Conservation and restoration--Congresses.
Material culture--Conservation and restoration--Congresses.
Museum conservation methods--Congresses.
Museum conservation methods.